Home / 187,390.78-258,599.19-102,507.82

Finding the Fourth Proportional to 187,390.78, 258,599.19 and 102,507.82

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Solution

The fourth proportional to 187,390.78, 258,599.19 and 102,507.82 is: 141,460.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,390.78 : 258,599.19 = 102,507.82 : x
  2. Step 2: Convert to fraction form
    187,390.78/258,599.19 = 102,507.82/x
  3. Step 3: Cross multiply
    187,390.78x = 258,599.19 × 102,507.82
  4. Step 4: Simplify right side
    187,390.78x = 26,508,439,220.67
  5. Step 5: Solve for x
    x = 26,508,439,220.67/187,390.78
  6. Step 6: Final answer
    x = 141,460.74

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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.