Home / 258,877.11-388,342.16-99,087.29

Finding the Fourth Proportional to 258,877.11, 388,342.16 and 99,087.29

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Solution

The fourth proportional to 258,877.11, 388,342.16 and 99,087.29 is: 148,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,877.11 : 388,342.16 = 99,087.29 : x
  2. Step 2: Convert to fraction form
    258,877.11/388,342.16 = 99,087.29/x
  3. Step 3: Cross multiply
    258,877.11x = 388,342.16 × 99,087.29
  4. Step 4: Simplify right side
    258,877.11x = 38,479,772,227.15
  5. Step 5: Solve for x
    x = 38,479,772,227.15/258,877.11
  6. Step 6: Final answer
    x = 148,641.08

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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.