Home / 124,734.84-187,131.48-85,310.52

Finding the Fourth Proportional to 124,734.84, 187,131.48 and 85,310.52

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Solution

The fourth proportional to 124,734.84, 187,131.48 and 85,310.52 is: 127,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,734.84 : 187,131.48 = 85,310.52 : x
  2. Step 2: Convert to fraction form
    124,734.84/187,131.48 = 85,310.52/x
  3. Step 3: Cross multiply
    124,734.84x = 187,131.48 × 85,310.52
  4. Step 4: Simplify right side
    124,734.84x = 15,964,283,867.17
  5. Step 5: Solve for x
    x = 15,964,283,867.17/124,734.84
  6. Step 6: Final answer
    x = 127,985.76

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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.