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Finding the Fourth Proportional to 162,394.71, 224,108.73 and 90,786.66

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Solution

The fourth proportional to 162,394.71, 224,108.73 and 90,786.66 is: 125,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,394.71 : 224,108.73 = 90,786.66 : x
  2. Step 2: Convert to fraction form
    162,394.71/224,108.73 = 90,786.66/x
  3. Step 3: Cross multiply
    162,394.71x = 224,108.73 × 90,786.66
  4. Step 4: Simplify right side
    162,394.71x = 20,346,083,073.54
  5. Step 5: Solve for x
    x = 20,346,083,073.54/162,394.71
  6. Step 6: Final answer
    x = 125,287.84

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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.