Home / 124,955.64-187,236.63-68,712.21

Finding the Fourth Proportional to 124,955.64, 187,236.63 and 68,712.21

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Solution

The fourth proportional to 124,955.64, 187,236.63 and 68,712.21 is: 102,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,955.64 : 187,236.63 = 68,712.21 : x
  2. Step 2: Convert to fraction form
    124,955.64/187,236.63 = 68,712.21/x
  3. Step 3: Cross multiply
    124,955.64x = 187,236.63 × 68,712.21
  4. Step 4: Simplify right side
    124,955.64x = 12,865,442,640.25
  5. Step 5: Solve for x
    x = 12,865,442,640.25/124,955.64
  6. Step 6: Final answer
    x = 102,960.08

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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.