Home / 125,489.05-188,326.53-69,377.47

Finding the Fourth Proportional to 125,489.05, 188,326.53 and 69,377.47

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Solution

The fourth proportional to 125,489.05, 188,326.53 and 69,377.47 is: 104,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,489.05 : 188,326.53 = 69,377.47 : x
  2. Step 2: Convert to fraction form
    125,489.05/188,326.53 = 69,377.47/x
  3. Step 3: Cross multiply
    125,489.05x = 188,326.53 × 69,377.47
  4. Step 4: Simplify right side
    125,489.05x = 13,065,617,714.46
  5. Step 5: Solve for x
    x = 13,065,617,714.46/125,489.05
  6. Step 6: Final answer
    x = 104,117.59

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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.