Home / 156,290.50-215,680.98-84,671.02

Finding the Fourth Proportional to 156,290.50, 215,680.98 and 84,671.02

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Solution

The fourth proportional to 156,290.50, 215,680.98 and 84,671.02 is: 116,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,290.50 : 215,680.98 = 84,671.02 : x
  2. Step 2: Convert to fraction form
    156,290.50/215,680.98 = 84,671.02/x
  3. Step 3: Cross multiply
    156,290.50x = 215,680.98 × 84,671.02
  4. Step 4: Simplify right side
    156,290.50x = 18,261,928,571.20
  5. Step 5: Solve for x
    x = 18,261,928,571.20/156,290.50
  6. Step 6: Final answer
    x = 116,846.06

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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.