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Finding the Fourth Proportional to 162,668.82, 224,480.65 and 90,064.76

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Solution

The fourth proportional to 162,668.82, 224,480.65 and 90,064.76 is: 124,288.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,668.82 : 224,480.65 = 90,064.76 : x
  2. Step 2: Convert to fraction form
    162,668.82/224,480.65 = 90,064.76/x
  3. Step 3: Cross multiply
    162,668.82x = 224,480.65 × 90,064.76
  4. Step 4: Simplify right side
    162,668.82x = 20,217,794,294.17
  5. Step 5: Solve for x
    x = 20,217,794,294.17/162,668.82
  6. Step 6: Final answer
    x = 124,288.07

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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.