Home / 187,426.15-258,654.02-102,543.21

Finding the Fourth Proportional to 187,426.15, 258,654.02 and 102,543.21

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Solution

The fourth proportional to 187,426.15, 258,654.02 and 102,543.21 is: 141,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,426.15 : 258,654.02 = 102,543.21 : x
  2. Step 2: Convert to fraction form
    187,426.15/258,654.02 = 102,543.21/x
  3. Step 3: Cross multiply
    187,426.15x = 258,654.02 × 102,543.21
  4. Step 4: Simplify right side
    187,426.15x = 26,523,212,977.49
  5. Step 5: Solve for x
    x = 26,523,212,977.49/187,426.15
  6. Step 6: Final answer
    x = 141,512.87

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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.