Home / 127,131.12-175,449.24-70,542.63

Finding the Fourth Proportional to 127,131.12, 175,449.24 and 70,542.63

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Solution

The fourth proportional to 127,131.12, 175,449.24 and 70,542.63 is: 97,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,131.12 : 175,449.24 = 70,542.63 : x
  2. Step 2: Convert to fraction form
    127,131.12/175,449.24 = 70,542.63/x
  3. Step 3: Cross multiply
    127,131.12x = 175,449.24 × 70,542.63
  4. Step 4: Simplify right side
    127,131.12x = 12,376,650,821.10
  5. Step 5: Solve for x
    x = 12,376,650,821.10/127,131.12
  6. Step 6: Final answer
    x = 97,353.43

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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.