Home / 122,223.20-183,116.10-75,421.40

Finding the Fourth Proportional to 122,223.20, 183,116.10 and 75,421.40

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Solution

The fourth proportional to 122,223.20, 183,116.10 and 75,421.40 is: 112,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,223.20 : 183,116.10 = 75,421.40 : x
  2. Step 2: Convert to fraction form
    122,223.20/183,116.10 = 75,421.40/x
  3. Step 3: Cross multiply
    122,223.20x = 183,116.10 × 75,421.40
  4. Step 4: Simplify right side
    122,223.20x = 13,810,872,624.54
  5. Step 5: Solve for x
    x = 13,810,872,624.54/122,223.20
  6. Step 6: Final answer
    x = 112,997.14

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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.