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Finding the Fourth Proportional to 146,770.30, 220,155.45 and 121,860.10

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Solution

The fourth proportional to 146,770.30, 220,155.45 and 121,860.10 is: 182,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,770.30 : 220,155.45 = 121,860.10 : x
  2. Step 2: Convert to fraction form
    146,770.30/220,155.45 = 121,860.10/x
  3. Step 3: Cross multiply
    146,770.30x = 220,155.45 × 121,860.10
  4. Step 4: Simplify right side
    146,770.30x = 26,828,165,152.55
  5. Step 5: Solve for x
    x = 26,828,165,152.55/146,770.30
  6. Step 6: Final answer
    x = 182,790.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.