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Finding the Fourth Proportional to 162,338.78, 224,023.38 and 90,719.39

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Solution

The fourth proportional to 162,338.78, 224,023.38 and 90,719.39 is: 125,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,338.78 : 224,023.38 = 90,719.39 : x
  2. Step 2: Convert to fraction form
    162,338.78/224,023.38 = 90,719.39/x
  3. Step 3: Cross multiply
    162,338.78x = 224,023.38 × 90,719.39
  4. Step 4: Simplify right side
    162,338.78x = 20,323,264,379.34
  5. Step 5: Solve for x
    x = 20,323,264,379.34/162,338.78
  6. Step 6: Final answer
    x = 125,190.45

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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.