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Finding the Fourth Proportional to 148,412.17, 204,819.03 and 90,291.58

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Solution

The fourth proportional to 148,412.17, 204,819.03 and 90,291.58 is: 124,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,412.17 : 204,819.03 = 90,291.58 : x
  2. Step 2: Convert to fraction form
    148,412.17/204,819.03 = 90,291.58/x
  3. Step 3: Cross multiply
    148,412.17x = 204,819.03 × 90,291.58
  4. Step 4: Simplify right side
    148,412.17x = 18,493,432,808.67
  5. Step 5: Solve for x
    x = 18,493,432,808.67/148,412.17
  6. Step 6: Final answer
    x = 124,608.60

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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.