Home / 156,565.20-216,060.84-84,945.36

Finding the Fourth Proportional to 156,565.20, 216,060.84 and 84,945.36

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Solution

The fourth proportional to 156,565.20, 216,060.84 and 84,945.36 is: 117,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565.20 : 216,060.84 = 84,945.36 : x
  2. Step 2: Convert to fraction form
    156,565.20/216,060.84 = 84,945.36/x
  3. Step 3: Cross multiply
    156,565.20x = 216,060.84 × 84,945.36
  4. Step 4: Simplify right side
    156,565.20x = 18,353,365,835.70
  5. Step 5: Solve for x
    x = 18,353,365,835.70/156,565.20
  6. Step 6: Final answer
    x = 117,225.07

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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.