Home / 115,252.25-158,988.80-76,999.56

Finding the Fourth Proportional to 115,252.25, 158,988.80 and 76,999.56

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Solution

The fourth proportional to 115,252.25, 158,988.80 and 76,999.56 is: 106,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,252.25 : 158,988.80 = 76,999.56 : x
  2. Step 2: Convert to fraction form
    115,252.25/158,988.80 = 76,999.56/x
  3. Step 3: Cross multiply
    115,252.25x = 158,988.80 × 76,999.56
  4. Step 4: Simplify right side
    115,252.25x = 12,242,067,259.93
  5. Step 5: Solve for x
    x = 12,242,067,259.93/115,252.25
  6. Step 6: Final answer
    x = 106,219.77

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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.