Home / 88,891.65-133,337.48-81,634.05

Finding the Fourth Proportional to 88,891.65, 133,337.48 and 81,634.05

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Solution

The fourth proportional to 88,891.65, 133,337.48 and 81,634.05 is: 122,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,891.65 : 133,337.48 = 81,634.05 : x
  2. Step 2: Convert to fraction form
    88,891.65/133,337.48 = 81,634.05/x
  3. Step 3: Cross multiply
    88,891.65x = 133,337.48 × 81,634.05
  4. Step 4: Simplify right side
    88,891.65x = 10,884,878,101.02
  5. Step 5: Solve for x
    x = 10,884,878,101.02/88,891.65
  6. Step 6: Final answer
    x = 122,451.08

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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.