Home / 121,199.52-181,595.16-76,876.32

Finding the Fourth Proportional to 121,199.52, 181,595.16 and 76,876.32

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Solution

The fourth proportional to 121,199.52, 181,595.16 and 76,876.32 is: 115,185.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,199.52 : 181,595.16 = 76,876.32 : x
  2. Step 2: Convert to fraction form
    121,199.52/181,595.16 = 76,876.32/x
  3. Step 3: Cross multiply
    121,199.52x = 181,595.16 × 76,876.32
  4. Step 4: Simplify right side
    121,199.52x = 13,960,367,630.61
  5. Step 5: Solve for x
    x = 13,960,367,630.61/121,199.52
  6. Step 6: Final answer
    x = 115,185.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.