Home / 129,510.34-178,737.06-75,792.15

Finding the Fourth Proportional to 129,510.34, 178,737.06 and 75,792.15

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Solution

The fourth proportional to 129,510.34, 178,737.06 and 75,792.15 is: 104,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,510.34 : 178,737.06 = 75,792.15 : x
  2. Step 2: Convert to fraction form
    129,510.34/178,737.06 = 75,792.15/x
  3. Step 3: Cross multiply
    129,510.34x = 178,737.06 × 75,792.15
  4. Step 4: Simplify right side
    129,510.34x = 13,546,866,062.08
  5. Step 5: Solve for x
    x = 13,546,866,062.08/129,510.34
  6. Step 6: Final answer
    x = 104,600.65

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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.