Home / 187,386.63-258,618.60-105,731.69

Finding the Fourth Proportional to 187,386.63, 258,618.60 and 105,731.69

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Solution

The fourth proportional to 187,386.63, 258,618.60 and 105,731.69 is: 145,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,386.63 : 258,618.60 = 105,731.69 : x
  2. Step 2: Convert to fraction form
    187,386.63/258,618.60 = 105,731.69/x
  3. Step 3: Cross multiply
    187,386.63x = 258,618.60 × 105,731.69
  4. Step 4: Simplify right side
    187,386.63x = 27,344,180,350.34
  5. Step 5: Solve for x
    x = 27,344,180,350.34/187,386.63
  6. Step 6: Final answer
    x = 145,923.86

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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.