Home / 158,263.24-218,405.86-86,642.04

Finding the Fourth Proportional to 158,263.24, 218,405.86 and 86,642.04

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Solution

The fourth proportional to 158,263.24, 218,405.86 and 86,642.04 is: 119,567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,263.24 : 218,405.86 = 86,642.04 : x
  2. Step 2: Convert to fraction form
    158,263.24/218,405.86 = 86,642.04/x
  3. Step 3: Cross multiply
    158,263.24x = 218,405.86 × 86,642.04
  4. Step 4: Simplify right side
    158,263.24x = 18,923,129,258.35
  5. Step 5: Solve for x
    x = 18,923,129,258.35/158,263.24
  6. Step 6: Final answer
    x = 119,567.43

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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.