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Finding the Fourth Proportional to 126,691.65, 173,903.13 and 112,030.20

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Solution

The fourth proportional to 126,691.65, 173,903.13 and 112,030.20 is: 153,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,691.65 : 173,903.13 = 112,030.20 : x
  2. Step 2: Convert to fraction form
    126,691.65/173,903.13 = 112,030.20/x
  3. Step 3: Cross multiply
    126,691.65x = 173,903.13 × 112,030.20
  4. Step 4: Simplify right side
    126,691.65x = 19,482,402,434.53
  5. Step 5: Solve for x
    x = 19,482,402,434.53/126,691.65
  6. Step 6: Final answer
    x = 153,778.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.