Home / 158,387.85-218,574.59-86,772.33

Finding the Fourth Proportional to 158,387.85, 218,574.59 and 86,772.33

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Solution

The fourth proportional to 158,387.85, 218,574.59 and 86,772.33 is: 119,745.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,387.85 : 218,574.59 = 86,772.33 : x
  2. Step 2: Convert to fraction form
    158,387.85/218,574.59 = 86,772.33/x
  3. Step 3: Cross multiply
    158,387.85x = 218,574.59 × 86,772.33
  4. Step 4: Simplify right side
    158,387.85x = 18,966,226,019.23
  5. Step 5: Solve for x
    x = 18,966,226,019.23/158,387.85
  6. Step 6: Final answer
    x = 119,745.46

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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.