Home / 120,432.82-179,916.70-77,966.94

Finding the Fourth Proportional to 120,432.82, 179,916.70 and 77,966.94

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Solution

The fourth proportional to 120,432.82, 179,916.70 and 77,966.94 is: 116,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,432.82 : 179,916.70 = 77,966.94 : x
  2. Step 2: Convert to fraction form
    120,432.82/179,916.70 = 77,966.94/x
  3. Step 3: Cross multiply
    120,432.82x = 179,916.70 × 77,966.94
  4. Step 4: Simplify right side
    120,432.82x = 14,027,554,553.90
  5. Step 5: Solve for x
    x = 14,027,554,553.90/120,432.82
  6. Step 6: Final answer
    x = 116,476.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.