Home / 158,904.88-219,290.28-86,309.16

Finding the Fourth Proportional to 158,904.88, 219,290.28 and 86,309.16

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Solution

The fourth proportional to 158,904.88, 219,290.28 and 86,309.16 is: 119,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,904.88 : 219,290.28 = 86,309.16 : x
  2. Step 2: Convert to fraction form
    158,904.88/219,290.28 = 86,309.16/x
  3. Step 3: Cross multiply
    158,904.88x = 219,290.28 × 86,309.16
  4. Step 4: Simplify right side
    158,904.88x = 18,926,759,862.96
  5. Step 5: Solve for x
    x = 18,926,759,862.96/158,904.88
  6. Step 6: Final answer
    x = 119,107.48

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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.