Home / 86,385.32-119,141.26-72,534.18

Finding the Fourth Proportional to 86,385.32, 119,141.26 and 72,534.18

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Solution

The fourth proportional to 86,385.32, 119,141.26 and 72,534.18 is: 100,037.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,385.32 : 119,141.26 = 72,534.18 : x
  2. Step 2: Convert to fraction form
    86,385.32/119,141.26 = 72,534.18/x
  3. Step 3: Cross multiply
    86,385.32x = 119,141.26 × 72,534.18
  4. Step 4: Simplify right side
    86,385.32x = 8,641,813,598.27
  5. Step 5: Solve for x
    x = 8,641,813,598.27/86,385.32
  6. Step 6: Final answer
    x = 100,037.99

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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.