Home / 156,038.40-234,057.60-129,772.80

Finding the Fourth Proportional to 156,038.40, 234,057.60 and 129,772.80

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Solution

The fourth proportional to 156,038.40, 234,057.60 and 129,772.80 is: 194,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,038.40 : 234,057.60 = 129,772.80 : x
  2. Step 2: Convert to fraction form
    156,038.40/234,057.60 = 129,772.80/x
  3. Step 3: Cross multiply
    156,038.40x = 234,057.60 × 129,772.80
  4. Step 4: Simplify right side
    156,038.40x = 30,374,310,113.28
  5. Step 5: Solve for x
    x = 30,374,310,113.28/156,038.40
  6. Step 6: Final answer
    x = 194,659.20

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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.