Home / 156,022.80-234,034.20-137,943.60

Finding the Fourth Proportional to 156,022.80, 234,034.20 and 137,943.60

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Solution

The fourth proportional to 156,022.80, 234,034.20 and 137,943.60 is: 206,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,022.80 : 234,034.20 = 137,943.60 : x
  2. Step 2: Convert to fraction form
    156,022.80/234,034.20 = 137,943.60/x
  3. Step 3: Cross multiply
    156,022.80x = 234,034.20 × 137,943.60
  4. Step 4: Simplify right side
    156,022.80x = 32,283,520,071.12
  5. Step 5: Solve for x
    x = 32,283,520,071.12/156,022.80
  6. Step 6: Final answer
    x = 206,915.40

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1.5x scale

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.