Home / 187,042.13-258,119.51-102,159.20

Finding the Fourth Proportional to 187,042.13, 258,119.51 and 102,159.20

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Solution

The fourth proportional to 187,042.13, 258,119.51 and 102,159.20 is: 140,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,042.13 : 258,119.51 = 102,159.20 : x
  2. Step 2: Convert to fraction form
    187,042.13/258,119.51 = 102,159.20/x
  3. Step 3: Cross multiply
    187,042.13x = 258,119.51 × 102,159.20
  4. Step 4: Simplify right side
    187,042.13x = 26,369,280,844.60
  5. Step 5: Solve for x
    x = 26,369,280,844.60/187,042.13
  6. Step 6: Final answer
    x = 140,980.44

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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.