Home / 105,173,782.20-157,760,673.30-103,662,127.80

Finding the Fourth Proportional to 105,173,782.20, 157,760,673.30 and 103,662,127.80

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Solution

The fourth proportional to 105,173,782.20, 157,760,673.30 and 103,662,127.80 is: 155,493,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,173,782.20 : 157,760,673.30 = 103,662,127.80 : x
  2. Step 2: Convert to fraction form
    105,173,782.20/157,760,673.30 = 103,662,127.80/x
  3. Step 3: Cross multiply
    105,173,782.20x = 157,760,673.30 × 103,662,127.80
  4. Step 4: Simplify right side
    105,173,782.20x = 16,353,807,077,438,648
  5. Step 5: Solve for x
    x = 16,353,807,077,438,648/105,173,782.20
  6. Step 6: Final answer
    x = 155,493,191.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.