Home / 120,916.64-166,856.28-75,614.96

Finding the Fourth Proportional to 120,916.64, 166,856.28 and 75,614.96

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Solution

The fourth proportional to 120,916.64, 166,856.28 and 75,614.96 is: 104,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,916.64 : 166,856.28 = 75,614.96 : x
  2. Step 2: Convert to fraction form
    120,916.64/166,856.28 = 75,614.96/x
  3. Step 3: Cross multiply
    120,916.64x = 166,856.28 × 75,614.96
  4. Step 4: Simplify right side
    120,916.64x = 12,616,830,937.95
  5. Step 5: Solve for x
    x = 12,616,830,937.95/120,916.64
  6. Step 6: Final answer
    x = 104,343.21

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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.