Home / 158,419.16-218,610.08-90,433.43

Finding the Fourth Proportional to 158,419.16, 218,610.08 and 90,433.43

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Solution

The fourth proportional to 158,419.16, 218,610.08 and 90,433.43 is: 124,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,419.16 : 218,610.08 = 90,433.43 : x
  2. Step 2: Convert to fraction form
    158,419.16/218,610.08 = 90,433.43/x
  3. Step 3: Cross multiply
    158,419.16x = 218,610.08 × 90,433.43
  4. Step 4: Simplify right side
    158,419.16x = 19,769,658,914.81
  5. Step 5: Solve for x
    x = 19,769,658,914.81/158,419.16
  6. Step 6: Final answer
    x = 124,793.36

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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.