Home / 130,420.60-195,630.90-83,764.60

Finding the Fourth Proportional to 130,420.60, 195,630.90 and 83,764.60

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Solution

The fourth proportional to 130,420.60, 195,630.90 and 83,764.60 is: 125,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,420.60 : 195,630.90 = 83,764.60 : x
  2. Step 2: Convert to fraction form
    130,420.60/195,630.90 = 83,764.60/x
  3. Step 3: Cross multiply
    130,420.60x = 195,630.90 × 83,764.60
  4. Step 4: Simplify right side
    130,420.60x = 16,386,944,086.14
  5. Step 5: Solve for x
    x = 16,386,944,086.14/130,420.60
  6. Step 6: Final answer
    x = 125,646.90

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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.