Home / 130,129.60-195,259.20-74,012.80

Finding the Fourth Proportional to 130,129.60, 195,259.20 and 74,012.80

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Solution

The fourth proportional to 130,129.60, 195,259.20 and 74,012.80 is: 111,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,129.60 : 195,259.20 = 74,012.80 : x
  2. Step 2: Convert to fraction form
    130,129.60/195,259.20 = 74,012.80/x
  3. Step 3: Cross multiply
    130,129.60x = 195,259.20 × 74,012.80
  4. Step 4: Simplify right side
    130,129.60x = 14,451,680,117.76
  5. Step 5: Solve for x
    x = 14,451,680,117.76/130,129.60
  6. Step 6: Final answer
    x = 111,056.06

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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.