Home / 120,292.86-180,445.23-31,546.56

Finding the Fourth Proportional to 120,292.86, 180,445.23 and 31,546.56

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Solution

The fourth proportional to 120,292.86, 180,445.23 and 31,546.56 is: 47,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292.86 : 180,445.23 = 31,546.56 : x
  2. Step 2: Convert to fraction form
    120,292.86/180,445.23 = 31,546.56/x
  3. Step 3: Cross multiply
    120,292.86x = 180,445.23 × 31,546.56
  4. Step 4: Simplify right side
    120,292.86x = 5,692,426,274.91
  5. Step 5: Solve for x
    x = 5,692,426,274.91/120,292.86
  6. Step 6: Final answer
    x = 47,321.40

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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.