Home / 123,470.13-170,385.29-72,482.04

Finding the Fourth Proportional to 123,470.13, 170,385.29 and 72,482.04

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Solution

The fourth proportional to 123,470.13, 170,385.29 and 72,482.04 is: 100,023.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,470.13 : 170,385.29 = 72,482.04 : x
  2. Step 2: Convert to fraction form
    123,470.13/170,385.29 = 72,482.04/x
  3. Step 3: Cross multiply
    123,470.13x = 170,385.29 × 72,482.04
  4. Step 4: Simplify right side
    123,470.13x = 12,349,873,405.19
  5. Step 5: Solve for x
    x = 12,349,873,405.19/123,470.13
  6. Step 6: Final answer
    x = 100,023.17

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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.