Home / 156,979.02-216,626.31-89,002.20

Finding the Fourth Proportional to 156,979.02, 216,626.31 and 89,002.20

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Solution

The fourth proportional to 156,979.02, 216,626.31 and 89,002.20 is: 122,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.02 : 216,626.31 = 89,002.20 : x
  2. Step 2: Convert to fraction form
    156,979.02/216,626.31 = 89,002.20/x
  3. Step 3: Cross multiply
    156,979.02x = 216,626.31 × 89,002.20
  4. Step 4: Simplify right side
    156,979.02x = 19,280,218,167.88
  5. Step 5: Solve for x
    x = 19,280,218,167.88/156,979.02
  6. Step 6: Final answer
    x = 122,820.35

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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.