Home / 130,343.20-195,903.60-128,010.40

Finding the Fourth Proportional to 130,343.20, 195,903.60 and 128,010.40

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Solution

The fourth proportional to 130,343.20, 195,903.60 and 128,010.40 is: 192,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,343.20 : 195,903.60 = 128,010.40 : x
  2. Step 2: Convert to fraction form
    130,343.20/195,903.60 = 128,010.40/x
  3. Step 3: Cross multiply
    130,343.20x = 195,903.60 × 128,010.40
  4. Step 4: Simplify right side
    130,343.20x = 25,077,698,197.44
  5. Step 5: Solve for x
    x = 25,077,698,197.44/130,343.20
  6. Step 6: Final answer
    x = 192,397.44

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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.