Home / 121,719.39-182,306.83-70,365.13

Finding the Fourth Proportional to 121,719.39, 182,306.83 and 70,365.13

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Solution

The fourth proportional to 121,719.39, 182,306.83 and 70,365.13 is: 105,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,719.39 : 182,306.83 = 70,365.13 : x
  2. Step 2: Convert to fraction form
    121,719.39/182,306.83 = 70,365.13/x
  3. Step 3: Cross multiply
    121,719.39x = 182,306.83 × 70,365.13
  4. Step 4: Simplify right side
    121,719.39x = 12,828,043,293.09
  5. Step 5: Solve for x
    x = 12,828,043,293.09/121,719.39
  6. Step 6: Final answer
    x = 105,390.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.