Home / 231,534.05-319,506.12-129,572.46

Finding the Fourth Proportional to 231,534.05, 319,506.12 and 129,572.46

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Solution

The fourth proportional to 231,534.05, 319,506.12 and 129,572.46 is: 178,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,534.05 : 319,506.12 = 129,572.46 : x
  2. Step 2: Convert to fraction form
    231,534.05/319,506.12 = 129,572.46/x
  3. Step 3: Cross multiply
    231,534.05x = 319,506.12 × 129,572.46
  4. Step 4: Simplify right side
    231,534.05x = 41,399,193,953.46
  5. Step 5: Solve for x
    x = 41,399,193,953.46/231,534.05
  6. Step 6: Final answer
    x = 178,803.92

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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.