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Finding the Fourth Proportional to 162,354.78, 224,045.46 and 90,735.39

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Solution

The fourth proportional to 162,354.78, 224,045.46 and 90,735.39 is: 125,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,354.78 : 224,045.46 = 90,735.39 : x
  2. Step 2: Convert to fraction form
    162,354.78/224,045.46 = 90,735.39/x
  3. Step 3: Cross multiply
    162,354.78x = 224,045.46 × 90,735.39
  4. Step 4: Simplify right side
    162,354.78x = 20,328,852,190.83
  5. Step 5: Solve for x
    x = 20,328,852,190.83/162,354.78
  6. Step 6: Final answer
    x = 125,212.53

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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.