Home / 105,173,785.20-157,760,677.80-103,662,130.80

Finding the Fourth Proportional to 105,173,785.20, 157,760,677.80 and 103,662,130.80

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Solution

The fourth proportional to 105,173,785.20, 157,760,677.80 and 103,662,130.80 is: 155,493,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,173,785.20 : 157,760,677.80 = 103,662,130.80 : x
  2. Step 2: Convert to fraction form
    105,173,785.20/157,760,677.80 = 103,662,130.80/x
  3. Step 3: Cross multiply
    105,173,785.20x = 157,760,677.80 × 103,662,130.80
  4. Step 4: Simplify right side
    105,173,785.20x = 16,353,808,017,200,258
  5. Step 5: Solve for x
    x = 16,353,808,017,200,258/105,173,785.20
  6. Step 6: Final answer
    x = 155,493,196.20

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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.