Home / 126,987.15-175,242.52-70,398.53

Finding the Fourth Proportional to 126,987.15, 175,242.52 and 70,398.53

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Solution

The fourth proportional to 126,987.15, 175,242.52 and 70,398.53 is: 97,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,987.15 : 175,242.52 = 70,398.53 : x
  2. Step 2: Convert to fraction form
    126,987.15/175,242.52 = 70,398.53/x
  3. Step 3: Cross multiply
    126,987.15x = 175,242.52 × 70,398.53
  4. Step 4: Simplify right side
    126,987.15x = 12,336,815,801.50
  5. Step 5: Solve for x
    x = 12,336,815,801.50/126,987.15
  6. Step 6: Final answer
    x = 97,150.11

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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.