Home / 111,280.73-153,560.13-70,990.17

Finding the Fourth Proportional to 111,280.73, 153,560.13 and 70,990.17

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Solution

The fourth proportional to 111,280.73, 153,560.13 and 70,990.17 is: 97,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,280.73 : 153,560.13 = 70,990.17 : x
  2. Step 2: Convert to fraction form
    111,280.73/153,560.13 = 70,990.17/x
  3. Step 3: Cross multiply
    111,280.73x = 153,560.13 × 70,990.17
  4. Step 4: Simplify right side
    111,280.73x = 10,901,259,733.92
  5. Step 5: Solve for x
    x = 10,901,259,733.92/111,280.73
  6. Step 6: Final answer
    x = 97,961.79

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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.