Home / 127,630.72-176,136.24-71,045.76

Finding the Fourth Proportional to 127,630.72, 176,136.24 and 71,045.76

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Solution

The fourth proportional to 127,630.72, 176,136.24 and 71,045.76 is: 98,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,630.72 : 176,136.24 = 71,045.76 : x
  2. Step 2: Convert to fraction form
    127,630.72/176,136.24 = 71,045.76/x
  3. Step 3: Cross multiply
    127,630.72x = 176,136.24 × 71,045.76
  4. Step 4: Simplify right side
    127,630.72x = 12,513,733,034.34
  5. Step 5: Solve for x
    x = 12,513,733,034.34/127,630.72
  6. Step 6: Final answer
    x = 98,046.40

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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.