Home / 185,630.45-278,445.36-67,301.60

Finding the Fourth Proportional to 185,630.45, 278,445.36 and 67,301.60

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Solution

The fourth proportional to 185,630.45, 278,445.36 and 67,301.60 is: 100,952.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,630.45 : 278,445.36 = 67,301.60 : x
  2. Step 2: Convert to fraction form
    185,630.45/278,445.36 = 67,301.60/x
  3. Step 3: Cross multiply
    185,630.45x = 278,445.36 × 67,301.60
  4. Step 4: Simplify right side
    185,630.45x = 18,739,818,240.58
  5. Step 5: Solve for x
    x = 18,739,818,240.58/185,630.45
  6. Step 6: Final answer
    x = 100,952.29

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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.