Home / 131,708.10-181,737.61-79,998.28

Finding the Fourth Proportional to 131,708.10, 181,737.61 and 79,998.28

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Solution

The fourth proportional to 131,708.10, 181,737.61 and 79,998.28 is: 110,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,708.10 : 181,737.61 = 79,998.28 : x
  2. Step 2: Convert to fraction form
    131,708.10/181,737.61 = 79,998.28/x
  3. Step 3: Cross multiply
    131,708.10x = 181,737.61 × 79,998.28
  4. Step 4: Simplify right side
    131,708.10x = 14,538,696,211.31
  5. Step 5: Solve for x
    x = 14,538,696,211.31/131,708.10
  6. Step 6: Final answer
    x = 110,385.74

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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.