Home / 120,041.32-180,062.06-31,294.60

Finding the Fourth Proportional to 120,041.32, 180,062.06 and 31,294.60

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Solution

The fourth proportional to 120,041.32, 180,062.06 and 31,294.60 is: 46,941.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,041.32 : 180,062.06 = 31,294.60 : x
  2. Step 2: Convert to fraction form
    120,041.32/180,062.06 = 31,294.60/x
  3. Step 3: Cross multiply
    120,041.32x = 180,062.06 × 31,294.60
  4. Step 4: Simplify right side
    120,041.32x = 5,634,970,142.88
  5. Step 5: Solve for x
    x = 5,634,970,142.88/120,041.32
  6. Step 6: Final answer
    x = 46,941.92

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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.