Home / 134,776.88-186,238.12-115,392.20

Finding the Fourth Proportional to 134,776.88, 186,238.12 and 115,392.20

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Solution

The fourth proportional to 134,776.88, 186,238.12 and 115,392.20 is: 159,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,776.88 : 186,238.12 = 115,392.20 : x
  2. Step 2: Convert to fraction form
    134,776.88/186,238.12 = 115,392.20/x
  3. Step 3: Cross multiply
    134,776.88x = 186,238.12 × 115,392.20
  4. Step 4: Simplify right side
    134,776.88x = 21,490,426,390.66
  5. Step 5: Solve for x
    x = 21,490,426,390.66/134,776.88
  6. Step 6: Final answer
    x = 159,451.88

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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.