Home / 102,660.49-141,662.25-57,332.18

Finding the Fourth Proportional to 102,660.49, 141,662.25 and 57,332.18

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Solution

The fourth proportional to 102,660.49, 141,662.25 and 57,332.18 is: 79,113.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,660.49 : 141,662.25 = 57,332.18 : x
  2. Step 2: Convert to fraction form
    102,660.49/141,662.25 = 57,332.18/x
  3. Step 3: Cross multiply
    102,660.49x = 141,662.25 × 57,332.18
  4. Step 4: Simplify right side
    102,660.49x = 8,121,805,616.21
  5. Step 5: Solve for x
    x = 8,121,805,616.21/102,660.49
  6. Step 6: Final answer
    x = 79,113.26

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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.