Home / 105,173,780.20-157,760,670.30-103,662,125.80

Finding the Fourth Proportional to 105,173,780.20, 157,760,670.30 and 103,662,125.80

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Solution

The fourth proportional to 105,173,780.20, 157,760,670.30 and 103,662,125.80 is: 155,493,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,173,780.20 : 157,760,670.30 = 103,662,125.80 : x
  2. Step 2: Convert to fraction form
    105,173,780.20/157,760,670.30 = 103,662,125.80/x
  3. Step 3: Cross multiply
    105,173,780.20x = 157,760,670.30 × 103,662,125.80
  4. Step 4: Simplify right side
    105,173,780.20x = 16,353,806,450,930,924
  5. Step 5: Solve for x
    x = 16,353,806,450,930,924/105,173,780.20
  6. Step 6: Final answer
    x = 155,493,188.70

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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.