Home / 156,972.46-216,617.40-88,995.70

Finding the Fourth Proportional to 156,972.46, 216,617.40 and 88,995.70

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Solution

The fourth proportional to 156,972.46, 216,617.40 and 88,995.70 is: 122,811.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.46 : 216,617.40 = 88,995.70 : x
  2. Step 2: Convert to fraction form
    156,972.46/216,617.40 = 88,995.70/x
  3. Step 3: Cross multiply
    156,972.46x = 216,617.40 × 88,995.70
  4. Step 4: Simplify right side
    156,972.46x = 19,278,017,145.18
  5. Step 5: Solve for x
    x = 19,278,017,145.18/156,972.46
  6. Step 6: Final answer
    x = 122,811.46

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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.