Home / 160,836.62-221,981.15-89,239.70

Finding the Fourth Proportional to 160,836.62, 221,981.15 and 89,239.70

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Solution

The fourth proportional to 160,836.62, 221,981.15 and 89,239.70 is: 123,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,836.62 : 221,981.15 = 89,239.70 : x
  2. Step 2: Convert to fraction form
    160,836.62/221,981.15 = 89,239.70/x
  3. Step 3: Cross multiply
    160,836.62x = 221,981.15 × 89,239.70
  4. Step 4: Simplify right side
    160,836.62x = 19,809,532,009.71
  5. Step 5: Solve for x
    x = 19,809,532,009.71/160,836.62
  6. Step 6: Final answer
    x = 123,165.56

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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.