Home / 105,625.20-158,423.40-31,753.20

Finding the Fourth Proportional to 105,625.20, 158,423.40 and 31,753.20

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Solution

The fourth proportional to 105,625.20, 158,423.40 and 31,753.20 is: 47,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,625.20 : 158,423.40 = 31,753.20 : x
  2. Step 2: Convert to fraction form
    105,625.20/158,423.40 = 31,753.20/x
  3. Step 3: Cross multiply
    105,625.20x = 158,423.40 × 31,753.20
  4. Step 4: Simplify right side
    105,625.20x = 5,030,449,904.88
  5. Step 5: Solve for x
    x = 5,030,449,904.88/105,625.20
  6. Step 6: Final answer
    x = 47,625.47

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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.