Home / 92,162.76-138,029.63-89,639.61

Finding the Fourth Proportional to 92,162.76, 138,029.63 and 89,639.61

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Solution

The fourth proportional to 92,162.76, 138,029.63 and 89,639.61 is: 134,250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,162.76 : 138,029.63 = 89,639.61 : x
  2. Step 2: Convert to fraction form
    92,162.76/138,029.63 = 89,639.61/x
  3. Step 3: Cross multiply
    92,162.76x = 138,029.63 × 89,639.61
  4. Step 4: Simplify right side
    92,162.76x = 12,372,921,753.45
  5. Step 5: Solve for x
    x = 12,372,921,753.45/92,162.76
  6. Step 6: Final answer
    x = 134,250.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.