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Finding the Fourth Proportional to 146,775.70, 220,163.55 and 145,854.10

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Solution

The fourth proportional to 146,775.70, 220,163.55 and 145,854.10 is: 218,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,775.70 : 220,163.55 = 145,854.10 : x
  2. Step 2: Convert to fraction form
    146,775.70/220,163.55 = 145,854.10/x
  3. Step 3: Cross multiply
    146,775.70x = 220,163.55 × 145,854.10
  4. Step 4: Simplify right side
    146,775.70x = 32,111,756,438.06
  5. Step 5: Solve for x
    x = 32,111,756,438.06/146,775.70
  6. Step 6: Final answer
    x = 218,781.15

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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.