Home / 236,496.47-326,366.10-129,068.78

Finding the Fourth Proportional to 236,496.47, 326,366.10 and 129,068.78

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Solution

The fourth proportional to 236,496.47, 326,366.10 and 129,068.78 is: 178,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,496.47 : 326,366.10 = 129,068.78 : x
  2. Step 2: Convert to fraction form
    236,496.47/326,366.10 = 129,068.78/x
  3. Step 3: Cross multiply
    236,496.47x = 326,366.10 × 129,068.78
  4. Step 4: Simplify right side
    236,496.47x = 42,123,672,728.53
  5. Step 5: Solve for x
    x = 42,123,672,728.53/236,496.47
  6. Step 6: Final answer
    x = 178,115.44

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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.