Home / 103,707.28-155,270.40-56,151.64

Finding the Fourth Proportional to 103,707.28, 155,270.40 and 56,151.64

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Solution

The fourth proportional to 103,707.28, 155,270.40 and 56,151.64 is: 84,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,707.28 : 155,270.40 = 56,151.64 : x
  2. Step 2: Convert to fraction form
    103,707.28/155,270.40 = 56,151.64/x
  3. Step 3: Cross multiply
    103,707.28x = 155,270.40 × 56,151.64
  4. Step 4: Simplify right side
    103,707.28x = 8,718,687,603.46
  5. Step 5: Solve for x
    x = 8,718,687,603.46/103,707.28
  6. Step 6: Final answer
    x = 84,070.16

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1.5x scale

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.