Home / 120,345.44-180,543.06-36,102.20

Finding the Fourth Proportional to 120,345.44, 180,543.06 and 36,102.20

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Solution

The fourth proportional to 120,345.44, 180,543.06 and 36,102.20 is: 54,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,345.44 : 180,543.06 = 36,102.20 : x
  2. Step 2: Convert to fraction form
    120,345.44/180,543.06 = 36,102.20/x
  3. Step 3: Cross multiply
    120,345.44x = 180,543.06 × 36,102.20
  4. Step 4: Simplify right side
    120,345.44x = 6,518,000,758.02
  5. Step 5: Solve for x
    x = 6,518,000,758.02/120,345.44
  6. Step 6: Final answer
    x = 54,160.76

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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.