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Finding the Fourth Proportional to 146,765.70, 220,148.55 and 84,384.90

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Solution

The fourth proportional to 146,765.70, 220,148.55 and 84,384.90 is: 126,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,765.70 : 220,148.55 = 84,384.90 : x
  2. Step 2: Convert to fraction form
    146,765.70/220,148.55 = 84,384.90/x
  3. Step 3: Cross multiply
    146,765.70x = 220,148.55 × 84,384.90
  4. Step 4: Simplify right side
    146,765.70x = 18,577,213,376.90
  5. Step 5: Solve for x
    x = 18,577,213,376.90/146,765.70
  6. Step 6: Final answer
    x = 126,577.35

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1.5x scale

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.