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Finding the Fourth Proportional to 144,006.80, 215,902.20 and 73,936.40

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Solution

The fourth proportional to 144,006.80, 215,902.20 and 73,936.40 is: 110,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,006.80 : 215,902.20 = 73,936.40 : x
  2. Step 2: Convert to fraction form
    144,006.80/215,902.20 = 73,936.40/x
  3. Step 3: Cross multiply
    144,006.80x = 215,902.20 × 73,936.40
  4. Step 4: Simplify right side
    144,006.80x = 15,963,031,420.08
  5. Step 5: Solve for x
    x = 15,963,031,420.08/144,006.80
  6. Step 6: Final answer
    x = 110,849.15

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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.