Home / 127,129.25-175,438.37-70,549.73

Finding the Fourth Proportional to 127,129.25, 175,438.37 and 70,549.73

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Solution

The fourth proportional to 127,129.25, 175,438.37 and 70,549.73 is: 97,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,129.25 : 175,438.37 = 70,549.73 : x
  2. Step 2: Convert to fraction form
    127,129.25/175,438.37 = 70,549.73/x
  3. Step 3: Cross multiply
    127,129.25x = 175,438.37 × 70,549.73
  4. Step 4: Simplify right side
    127,129.25x = 12,377,129,635.14
  5. Step 5: Solve for x
    x = 12,377,129,635.14/127,129.25
  6. Step 6: Final answer
    x = 97,358.63

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1.5x scale

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.