Home / 187,035.24-258,026.40-111,540

Finding the Fourth Proportional to 187,035.24, 258,026.40 and 111,540

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Solution

The fourth proportional to 187,035.24, 258,026.40 and 111,540 is: 153,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,035.24 : 258,026.40 = 111,540 : x
  2. Step 2: Convert to fraction form
    187,035.24/258,026.40 = 111,540/x
  3. Step 3: Cross multiply
    187,035.24x = 258,026.40 × 111,540
  4. Step 4: Simplify right side
    187,035.24x = 28,780,264,656
  5. Step 5: Solve for x
    x = 28,780,264,656/187,035.24
  6. Step 6: Final answer
    x = 153,876.16

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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.