Home / 120,443.20-180,521.28-49,362.97

Finding the Fourth Proportional to 120,443.20, 180,521.28 and 49,362.97

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Solution

The fourth proportional to 120,443.20, 180,521.28 and 49,362.97 is: 73,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,443.20 : 180,521.28 = 49,362.97 : x
  2. Step 2: Convert to fraction form
    120,443.20/180,521.28 = 49,362.97/x
  3. Step 3: Cross multiply
    120,443.20x = 180,521.28 × 49,362.97
  4. Step 4: Simplify right side
    120,443.20x = 8,911,066,529.00
  5. Step 5: Solve for x
    x = 8,911,066,529.00/120,443.20
  6. Step 6: Final answer
    x = 73,985.63

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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.