Home / 120,569.52-166,387.92-66,856.80

Finding the Fourth Proportional to 120,569.52, 166,387.92 and 66,856.80

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Solution

The fourth proportional to 120,569.52, 166,387.92 and 66,856.80 is: 92,263.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,569.52 : 166,387.92 = 66,856.80 : x
  2. Step 2: Convert to fraction form
    120,569.52/166,387.92 = 66,856.80/x
  3. Step 3: Cross multiply
    120,569.52x = 166,387.92 × 66,856.80
  4. Step 4: Simplify right side
    120,569.52x = 11,124,163,889.86
  5. Step 5: Solve for x
    x = 11,124,163,889.86/120,569.52
  6. Step 6: Final answer
    x = 92,263.48

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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.