Home / 156,629.39-235,139.40-155,909.75

Finding the Fourth Proportional to 156,629.39, 235,139.40 and 155,909.75

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Solution

The fourth proportional to 156,629.39, 235,139.40 and 155,909.75 is: 234,059.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,629.39 : 235,139.40 = 155,909.75 : x
  2. Step 2: Convert to fraction form
    156,629.39/235,139.40 = 155,909.75/x
  3. Step 3: Cross multiply
    156,629.39x = 235,139.40 × 155,909.75
  4. Step 4: Simplify right side
    156,629.39x = 36,660,525,069.15
  5. Step 5: Solve for x
    x = 36,660,525,069.15/156,629.39
  6. Step 6: Final answer
    x = 234,059.04

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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.