Home / 132,405.19-182,719.80-71,975.81

Finding the Fourth Proportional to 132,405.19, 182,719.80 and 71,975.81

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Solution

The fourth proportional to 132,405.19, 182,719.80 and 71,975.81 is: 99,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,405.19 : 182,719.80 = 71,975.81 : x
  2. Step 2: Convert to fraction form
    132,405.19/182,719.80 = 71,975.81/x
  3. Step 3: Cross multiply
    132,405.19x = 182,719.80 × 71,975.81
  4. Step 4: Simplify right side
    132,405.19x = 13,151,406,064.84
  5. Step 5: Solve for x
    x = 13,151,406,064.84/132,405.19
  6. Step 6: Final answer
    x = 99,326.97

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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.