Home / 156,943.80-235,070.10-109,942.20

Finding the Fourth Proportional to 156,943.80, 235,070.10 and 109,942.20

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Solution

The fourth proportional to 156,943.80, 235,070.10 and 109,942.20 is: 164,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,943.80 : 235,070.10 = 109,942.20 : x
  2. Step 2: Convert to fraction form
    156,943.80/235,070.10 = 109,942.20/x
  3. Step 3: Cross multiply
    156,943.80x = 235,070.10 × 109,942.20
  4. Step 4: Simplify right side
    156,943.80x = 25,844,123,948.22
  5. Step 5: Solve for x
    x = 25,844,123,948.22/156,943.80
  6. Step 6: Final answer
    x = 164,671.20

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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.