Home / 103,564.53-142,957.19-90,952.05

Finding the Fourth Proportional to 103,564.53, 142,957.19 and 90,952.05

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Solution

The fourth proportional to 103,564.53, 142,957.19 and 90,952.05 is: 125,547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,564.53 : 142,957.19 = 90,952.05 : x
  2. Step 2: Convert to fraction form
    103,564.53/142,957.19 = 90,952.05/x
  3. Step 3: Cross multiply
    103,564.53x = 142,957.19 × 90,952.05
  4. Step 4: Simplify right side
    103,564.53x = 13,002,249,037.98
  5. Step 5: Solve for x
    x = 13,002,249,037.98/103,564.53
  6. Step 6: Final answer
    x = 125,547.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.