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Finding the Fourth Proportional to 131,644.27, 181,668.27 and 71,214.67

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Solution

The fourth proportional to 131,644.27, 181,668.27 and 71,214.67 is: 98,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,644.27 : 181,668.27 = 71,214.67 : x
  2. Step 2: Convert to fraction form
    131,644.27/181,668.27 = 71,214.67/x
  3. Step 3: Cross multiply
    131,644.27x = 181,668.27 × 71,214.67
  4. Step 4: Simplify right side
    131,644.27x = 12,937,445,897.52
  5. Step 5: Solve for x
    x = 12,937,445,897.52/131,644.27
  6. Step 6: Final answer
    x = 98,275.80

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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.