Home / 236,819.80-326,807.50-129,387.52

Finding the Fourth Proportional to 236,819.80, 326,807.50 and 129,387.52

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Solution

The fourth proportional to 236,819.80, 326,807.50 and 129,387.52 is: 178,552.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,819.80 : 326,807.50 = 129,387.52 : x
  2. Step 2: Convert to fraction form
    236,819.80/326,807.50 = 129,387.52/x
  3. Step 3: Cross multiply
    236,819.80x = 326,807.50 × 129,387.52
  4. Step 4: Simplify right side
    236,819.80x = 42,284,811,942.40
  5. Step 5: Solve for x
    x = 42,284,811,942.40/236,819.80
  6. Step 6: Final answer
    x = 178,552.69

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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.