Home / 187,306.16-258,478.56-102,423.15

Finding the Fourth Proportional to 187,306.16, 258,478.56 and 102,423.15

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Solution

The fourth proportional to 187,306.16, 258,478.56 and 102,423.15 is: 141,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,306.16 : 258,478.56 = 102,423.15 : x
  2. Step 2: Convert to fraction form
    187,306.16/258,478.56 = 102,423.15/x
  3. Step 3: Cross multiply
    187,306.16x = 258,478.56 × 102,423.15
  4. Step 4: Simplify right side
    187,306.16x = 26,474,188,322.66
  5. Step 5: Solve for x
    x = 26,474,188,322.66/187,306.16
  6. Step 6: Final answer
    x = 141,341.80

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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.