Home / 187,098.24-258,113.28-111,603

Finding the Fourth Proportional to 187,098.24, 258,113.28 and 111,603

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Solution

The fourth proportional to 187,098.24, 258,113.28 and 111,603 is: 153,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,098.24 : 258,113.28 = 111,603 : x
  2. Step 2: Convert to fraction form
    187,098.24/258,113.28 = 111,603/x
  3. Step 3: Cross multiply
    187,098.24x = 258,113.28 × 111,603
  4. Step 4: Simplify right side
    187,098.24x = 28,806,216,387.84
  5. Step 5: Solve for x
    x = 28,806,216,387.84/187,098.24
  6. Step 6: Final answer
    x = 153,963.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.