Home / 136,837.46-188,966.10-129,382.62

Finding the Fourth Proportional to 136,837.46, 188,966.10 and 129,382.62

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Solution

The fourth proportional to 136,837.46, 188,966.10 and 129,382.62 is: 178,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,837.46 : 188,966.10 = 129,382.62 : x
  2. Step 2: Convert to fraction form
    136,837.46/188,966.10 = 129,382.62/x
  3. Step 3: Cross multiply
    136,837.46x = 188,966.10 × 129,382.62
  4. Step 4: Simplify right side
    136,837.46x = 24,448,929,109.18
  5. Step 5: Solve for x
    x = 24,448,929,109.18/136,837.46
  6. Step 6: Final answer
    x = 178,671.32

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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.