Home / 123,445.20-185,167.80-40,347.60

Finding the Fourth Proportional to 123,445.20, 185,167.80 and 40,347.60

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Solution

The fourth proportional to 123,445.20, 185,167.80 and 40,347.60 is: 60,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,445.20 : 185,167.80 = 40,347.60 : x
  2. Step 2: Convert to fraction form
    123,445.20/185,167.80 = 40,347.60/x
  3. Step 3: Cross multiply
    123,445.20x = 185,167.80 × 40,347.60
  4. Step 4: Simplify right side
    123,445.20x = 7,471,076,327.28
  5. Step 5: Solve for x
    x = 7,471,076,327.28/123,445.20
  6. Step 6: Final answer
    x = 60,521.40

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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.