Home / 101,381.49-139,901.85-58,359.15

Finding the Fourth Proportional to 101,381.49, 139,901.85 and 58,359.15

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Solution

The fourth proportional to 101,381.49, 139,901.85 and 58,359.15 is: 80,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,381.49 : 139,901.85 = 58,359.15 : x
  2. Step 2: Convert to fraction form
    101,381.49/139,901.85 = 58,359.15/x
  3. Step 3: Cross multiply
    101,381.49x = 139,901.85 × 58,359.15
  4. Step 4: Simplify right side
    101,381.49x = 8,164,553,049.43
  5. Step 5: Solve for x
    x = 8,164,553,049.43/101,381.49
  6. Step 6: Final answer
    x = 80,532.98

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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.