Home / 125,132.40-172,681.82-67,770.42

Finding the Fourth Proportional to 125,132.40, 172,681.82 and 67,770.42

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Solution

The fourth proportional to 125,132.40, 172,681.82 and 67,770.42 is: 93,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,132.40 : 172,681.82 = 67,770.42 : x
  2. Step 2: Convert to fraction form
    125,132.40/172,681.82 = 67,770.42/x
  3. Step 3: Cross multiply
    125,132.40x = 172,681.82 × 67,770.42
  4. Step 4: Simplify right side
    125,132.40x = 11,702,719,467.76
  5. Step 5: Solve for x
    x = 11,702,719,467.76/125,132.40
  6. Step 6: Final answer
    x = 93,522.70

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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.