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Finding the Fourth Proportional to 147,655.70, 221,483.55 and 54,149.30

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Solution

The fourth proportional to 147,655.70, 221,483.55 and 54,149.30 is: 81,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,655.70 : 221,483.55 = 54,149.30 : x
  2. Step 2: Convert to fraction form
    147,655.70/221,483.55 = 54,149.30/x
  3. Step 3: Cross multiply
    147,655.70x = 221,483.55 × 54,149.30
  4. Step 4: Simplify right side
    147,655.70x = 11,993,179,194.02
  5. Step 5: Solve for x
    x = 11,993,179,194.02/147,655.70
  6. Step 6: Final answer
    x = 81,223.95

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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.