Home / 102,334.40-153,218.20-52,306.78

Finding the Fourth Proportional to 102,334.40, 153,218.20 and 52,306.78

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Solution

The fourth proportional to 102,334.40, 153,218.20 and 52,306.78 is: 78,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,334.40 : 153,218.20 = 52,306.78 : x
  2. Step 2: Convert to fraction form
    102,334.40/153,218.20 = 52,306.78/x
  3. Step 3: Cross multiply
    102,334.40x = 153,218.20 × 52,306.78
  4. Step 4: Simplify right side
    102,334.40x = 8,014,350,679.40
  5. Step 5: Solve for x
    x = 8,014,350,679.40/102,334.40
  6. Step 6: Final answer
    x = 78,315.31

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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.