Home / 125,799.52-188,643.88-66,621.36

Finding the Fourth Proportional to 125,799.52, 188,643.88 and 66,621.36

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Solution

The fourth proportional to 125,799.52, 188,643.88 and 66,621.36 is: 99,902.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,799.52 : 188,643.88 = 66,621.36 : x
  2. Step 2: Convert to fraction form
    125,799.52/188,643.88 = 66,621.36/x
  3. Step 3: Cross multiply
    125,799.52x = 188,643.88 × 66,621.36
  4. Step 4: Simplify right side
    125,799.52x = 12,567,711,841.28
  5. Step 5: Solve for x
    x = 12,567,711,841.28/125,799.52
  6. Step 6: Final answer
    x = 99,902.70

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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.