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Finding the Fourth Proportional to 187,726.80, 259,048.08 and 102,843.12

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Solution

The fourth proportional to 187,726.80, 259,048.08 and 102,843.12 is: 141,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,726.80 : 259,048.08 = 102,843.12 : x
  2. Step 2: Convert to fraction form
    187,726.80/259,048.08 = 102,843.12/x
  3. Step 3: Cross multiply
    187,726.80x = 259,048.08 × 102,843.12
  4. Step 4: Simplify right side
    187,726.80x = 26,641,312,777.21
  5. Step 5: Solve for x
    x = 26,641,312,777.21/187,726.80
  6. Step 6: Final answer
    x = 141,915.34

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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.