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Finding the Fourth Proportional to 127,670.96, 176,182.80 and 71,081.12

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Solution

The fourth proportional to 127,670.96, 176,182.80 and 71,081.12 is: 98,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,670.96 : 176,182.80 = 71,081.12 : x
  2. Step 2: Convert to fraction form
    127,670.96/176,182.80 = 71,081.12/x
  3. Step 3: Cross multiply
    127,670.96x = 176,182.80 × 71,081.12
  4. Step 4: Simplify right side
    127,670.96x = 12,523,270,748.74
  5. Step 5: Solve for x
    x = 12,523,270,748.74/127,670.96
  6. Step 6: Final answer
    x = 98,090.21

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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.