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Finding the Fourth Proportional to 147,810.40, 221,672.40 and 53,029.60

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Solution

The fourth proportional to 147,810.40, 221,672.40 and 53,029.60 is: 79,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,810.40 : 221,672.40 = 53,029.60 : x
  2. Step 2: Convert to fraction form
    147,810.40/221,672.40 = 53,029.60/x
  3. Step 3: Cross multiply
    147,810.40x = 221,672.40 × 53,029.60
  4. Step 4: Simplify right side
    147,810.40x = 11,755,198,703.04
  5. Step 5: Solve for x
    x = 11,755,198,703.04/147,810.40
  6. Step 6: Final answer
    x = 79,528.90

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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.