Home / 127,715.10-176,252.31-71,126.48

Finding the Fourth Proportional to 127,715.10, 176,252.31 and 71,126.48

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Solution

The fourth proportional to 127,715.10, 176,252.31 and 71,126.48 is: 98,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,715.10 : 176,252.31 = 71,126.48 : x
  2. Step 2: Convert to fraction form
    127,715.10/176,252.31 = 71,126.48/x
  3. Step 3: Cross multiply
    127,715.10x = 176,252.31 × 71,126.48
  4. Step 4: Simplify right side
    127,715.10x = 12,536,206,181.85
  5. Step 5: Solve for x
    x = 12,536,206,181.85/127,715.10
  6. Step 6: Final answer
    x = 98,157.59

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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.