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Finding the Fourth Proportional to 160,011.20, 220,737.12 and 103,471.04

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Solution

The fourth proportional to 160,011.20, 220,737.12 and 103,471.04 is: 142,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,011.20 : 220,737.12 = 103,471.04 : x
  2. Step 2: Convert to fraction form
    160,011.20/220,737.12 = 103,471.04/x
  3. Step 3: Cross multiply
    160,011.20x = 220,737.12 × 103,471.04
  4. Step 4: Simplify right side
    160,011.20x = 22,839,899,373.00
  5. Step 5: Solve for x
    x = 22,839,899,373.00/160,011.20
  6. Step 6: Final answer
    x = 142,739.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.