Home / 158,268.24-218,412.76-86,647.04

Finding the Fourth Proportional to 158,268.24, 218,412.76 and 86,647.04

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Solution

The fourth proportional to 158,268.24, 218,412.76 and 86,647.04 is: 119,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,268.24 : 218,412.76 = 86,647.04 : x
  2. Step 2: Convert to fraction form
    158,268.24/218,412.76 = 86,647.04/x
  3. Step 3: Cross multiply
    158,268.24x = 218,412.76 × 86,647.04
  4. Step 4: Simplify right side
    158,268.24x = 18,924,819,152.23
  5. Step 5: Solve for x
    x = 18,924,819,152.23/158,268.24
  6. Step 6: Final answer
    x = 119,574.33

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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.