Home / 156,009.60-234,014.40-85,150.80

Finding the Fourth Proportional to 156,009.60, 234,014.40 and 85,150.80

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Solution

The fourth proportional to 156,009.60, 234,014.40 and 85,150.80 is: 127,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,009.60 : 234,014.40 = 85,150.80 : x
  2. Step 2: Convert to fraction form
    156,009.60/234,014.40 = 85,150.80/x
  3. Step 3: Cross multiply
    156,009.60x = 234,014.40 × 85,150.80
  4. Step 4: Simplify right side
    156,009.60x = 19,926,513,371.52
  5. Step 5: Solve for x
    x = 19,926,513,371.52/156,009.60
  6. Step 6: Final answer
    x = 127,726.20

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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.