Home / 156,700.90-234,954.15-90,108.10

Finding the Fourth Proportional to 156,700.90, 234,954.15 and 90,108.10

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Solution

The fourth proportional to 156,700.90, 234,954.15 and 90,108.10 is: 135,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,700.90 : 234,954.15 = 90,108.10 : x
  2. Step 2: Convert to fraction form
    156,700.90/234,954.15 = 90,108.10/x
  3. Step 3: Cross multiply
    156,700.90x = 234,954.15 × 90,108.10
  4. Step 4: Simplify right side
    156,700.90x = 21,171,272,043.62
  5. Step 5: Solve for x
    x = 21,171,272,043.62/156,700.90
  6. Step 6: Final answer
    x = 135,106.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.