Home / 125,327.20-172,949.28-70,878.52

Finding the Fourth Proportional to 125,327.20, 172,949.28 and 70,878.52

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Solution

The fourth proportional to 125,327.20, 172,949.28 and 70,878.52 is: 97,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,327.20 : 172,949.28 = 70,878.52 : x
  2. Step 2: Convert to fraction form
    125,327.20/172,949.28 = 70,878.52/x
  3. Step 3: Cross multiply
    125,327.20x = 172,949.28 × 70,878.52
  4. Step 4: Simplify right side
    125,327.20x = 12,258,389,001.47
  5. Step 5: Solve for x
    x = 12,258,389,001.47/125,327.20
  6. Step 6: Final answer
    x = 97,811.08

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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.