Home / 187,565.78-258,673.12-136,697.07

Finding the Fourth Proportional to 187,565.78, 258,673.12 and 136,697.07

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Solution

The fourth proportional to 187,565.78, 258,673.12 and 136,697.07 is: 188,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,565.78 : 258,673.12 = 136,697.07 : x
  2. Step 2: Convert to fraction form
    187,565.78/258,673.12 = 136,697.07/x
  3. Step 3: Cross multiply
    187,565.78x = 258,673.12 × 136,697.07
  4. Step 4: Simplify right side
    187,565.78x = 35,359,857,149.46
  5. Step 5: Solve for x
    x = 35,359,857,149.46/187,565.78
  6. Step 6: Final answer
    x = 188,519.77

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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.