Home / 125,351.40-172,972.26-70,909.50

Finding the Fourth Proportional to 125,351.40, 172,972.26 and 70,909.50

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Solution

The fourth proportional to 125,351.40, 172,972.26 and 70,909.50 is: 97,847.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,351.40 : 172,972.26 = 70,909.50 : x
  2. Step 2: Convert to fraction form
    125,351.40/172,972.26 = 70,909.50/x
  3. Step 3: Cross multiply
    125,351.40x = 172,972.26 × 70,909.50
  4. Step 4: Simplify right side
    125,351.40x = 12,265,376,470.47
  5. Step 5: Solve for x
    x = 12,265,376,470.47/125,351.40
  6. Step 6: Final answer
    x = 97,847.94

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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.