Home / 125,529.20-188,293.80-42,423.20

Finding the Fourth Proportional to 125,529.20, 188,293.80 and 42,423.20

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Solution

The fourth proportional to 125,529.20, 188,293.80 and 42,423.20 is: 63,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,529.20 : 188,293.80 = 42,423.20 : x
  2. Step 2: Convert to fraction form
    125,529.20/188,293.80 = 42,423.20/x
  3. Step 3: Cross multiply
    125,529.20x = 188,293.80 × 42,423.20
  4. Step 4: Simplify right side
    125,529.20x = 7,988,025,536.16
  5. Step 5: Solve for x
    x = 7,988,025,536.16/125,529.20
  6. Step 6: Final answer
    x = 63,634.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.