Home / 151,040.88-208,436.12-86,531.00

Finding the Fourth Proportional to 151,040.88, 208,436.12 and 86,531.00

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Solution

The fourth proportional to 151,040.88, 208,436.12 and 86,531.00 is: 119,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,040.88 : 208,436.12 = 86,531.00 : x
  2. Step 2: Convert to fraction form
    151,040.88/208,436.12 = 86,531.00/x
  3. Step 3: Cross multiply
    151,040.88x = 208,436.12 × 86,531.00
  4. Step 4: Simplify right side
    151,040.88x = 18,036,185,988.16
  5. Step 5: Solve for x
    x = 18,036,185,988.16/151,040.88
  6. Step 6: Final answer
    x = 119,412.61

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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.