Home / 130,155.60-195,233.40-128,773.20

Finding the Fourth Proportional to 130,155.60, 195,233.40 and 128,773.20

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Solution

The fourth proportional to 130,155.60, 195,233.40 and 128,773.20 is: 193,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,155.60 : 195,233.40 = 128,773.20 : x
  2. Step 2: Convert to fraction form
    130,155.60/195,233.40 = 128,773.20/x
  3. Step 3: Cross multiply
    130,155.60x = 195,233.40 × 128,773.20
  4. Step 4: Simplify right side
    130,155.60x = 25,140,829,664.88
  5. Step 5: Solve for x
    x = 25,140,829,664.88/130,155.60
  6. Step 6: Final answer
    x = 193,159.80

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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.