Home / 187,042.32-258,117.84-102,159.36

Finding the Fourth Proportional to 187,042.32, 258,117.84 and 102,159.36

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Solution

The fourth proportional to 187,042.32, 258,117.84 and 102,159.36 is: 140,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,042.32 : 258,117.84 = 102,159.36 : x
  2. Step 2: Convert to fraction form
    187,042.32/258,117.84 = 102,159.36/x
  3. Step 3: Cross multiply
    187,042.32x = 258,117.84 × 102,159.36
  4. Step 4: Simplify right side
    187,042.32x = 26,369,153,338.98
  5. Step 5: Solve for x
    x = 26,369,153,338.98/187,042.32
  6. Step 6: Final answer
    x = 140,979.61

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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.