Home / 160,731.72-221,812.44-89,114.76

Finding the Fourth Proportional to 160,731.72, 221,812.44 and 89,114.76

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Solution

The fourth proportional to 160,731.72, 221,812.44 and 89,114.76 is: 122,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,731.72 : 221,812.44 = 89,114.76 : x
  2. Step 2: Convert to fraction form
    160,731.72/221,812.44 = 89,114.76/x
  3. Step 3: Cross multiply
    160,731.72x = 221,812.44 × 89,114.76
  4. Step 4: Simplify right side
    160,731.72x = 19,766,762,355.61
  5. Step 5: Solve for x
    x = 19,766,762,355.61/160,731.72
  6. Step 6: Final answer
    x = 122,979.85

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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.