Home / 158,268.88-218,402.76-86,635.18

Finding the Fourth Proportional to 158,268.88, 218,402.76 and 86,635.18

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Solution

The fourth proportional to 158,268.88, 218,402.76 and 86,635.18 is: 119,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,268.88 : 218,402.76 = 86,635.18 : x
  2. Step 2: Convert to fraction form
    158,268.88/218,402.76 = 86,635.18/x
  3. Step 3: Cross multiply
    158,268.88x = 218,402.76 × 86,635.18
  4. Step 4: Simplify right side
    158,268.88x = 18,921,362,425.10
  5. Step 5: Solve for x
    x = 18,921,362,425.10/158,268.88
  6. Step 6: Final answer
    x = 119,552.01

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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.