Home / 129,726.14-179,025.24-72,365.04

Finding the Fourth Proportional to 129,726.14, 179,025.24 and 72,365.04

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Solution

The fourth proportional to 129,726.14, 179,025.24 and 72,365.04 is: 99,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,726.14 : 179,025.24 = 72,365.04 : x
  2. Step 2: Convert to fraction form
    129,726.14/179,025.24 = 72,365.04/x
  3. Step 3: Cross multiply
    129,726.14x = 179,025.24 × 72,365.04
  4. Step 4: Simplify right side
    129,726.14x = 12,955,168,653.61
  5. Step 5: Solve for x
    x = 12,955,168,653.61/129,726.14
  6. Step 6: Final answer
    x = 99,865.53

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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.