Home / 187,270.18-258,432.81-102,387.22

Finding the Fourth Proportional to 187,270.18, 258,432.81 and 102,387.22

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Solution

The fourth proportional to 187,270.18, 258,432.81 and 102,387.22 is: 141,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,270.18 : 258,432.81 = 102,387.22 : x
  2. Step 2: Convert to fraction form
    187,270.18/258,432.81 = 102,387.22/x
  3. Step 3: Cross multiply
    187,270.18x = 258,432.81 × 102,387.22
  4. Step 4: Simplify right side
    187,270.18x = 26,460,216,972.69
  5. Step 5: Solve for x
    x = 26,460,216,972.69/187,270.18
  6. Step 6: Final answer
    x = 141,294.34

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1.5x scale

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.