Home / 88,920.46-122,754.81-68,731.66

Finding the Fourth Proportional to 88,920.46, 122,754.81 and 68,731.66

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Solution

The fourth proportional to 88,920.46, 122,754.81 and 68,731.66 is: 94,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,920.46 : 122,754.81 = 68,731.66 : x
  2. Step 2: Convert to fraction form
    88,920.46/122,754.81 = 68,731.66/x
  3. Step 3: Cross multiply
    88,920.46x = 122,754.81 × 68,731.66
  4. Step 4: Simplify right side
    88,920.46x = 8,437,141,864.28
  5. Step 5: Solve for x
    x = 8,437,141,864.28/88,920.46
  6. Step 6: Final answer
    x = 94,884.15

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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.