Home / 130,179.60-195,334.20-51,296.40

Finding the Fourth Proportional to 130,179.60, 195,334.20 and 51,296.40

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Solution

The fourth proportional to 130,179.60, 195,334.20 and 51,296.40 is: 76,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,179.60 : 195,334.20 = 51,296.40 : x
  2. Step 2: Convert to fraction form
    130,179.60/195,334.20 = 51,296.40/x
  3. Step 3: Cross multiply
    130,179.60x = 195,334.20 × 51,296.40
  4. Step 4: Simplify right side
    130,179.60x = 10,019,941,256.88
  5. Step 5: Solve for x
    x = 10,019,941,256.88/130,179.60
  6. Step 6: Final answer
    x = 76,970.13

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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.