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Finding the Fourth Proportional to 172,489.60, 237,934.76 and 112,100.47

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Solution

The fourth proportional to 172,489.60, 237,934.76 and 112,100.47 is: 154,633.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,489.60 : 237,934.76 = 112,100.47 : x
  2. Step 2: Convert to fraction form
    172,489.60/237,934.76 = 112,100.47/x
  3. Step 3: Cross multiply
    172,489.60x = 237,934.76 × 112,100.47
  4. Step 4: Simplify right side
    172,489.60x = 26,672,598,425.34
  5. Step 5: Solve for x
    x = 26,672,598,425.34/172,489.60
  6. Step 6: Final answer
    x = 154,633.08

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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.