Home / 132,172-182,373.84-74,811.04

Finding the Fourth Proportional to 132,172, 182,373.84 and 74,811.04

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Solution

The fourth proportional to 132,172, 182,373.84 and 74,811.04 is: 103,225.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,172 : 182,373.84 = 74,811.04 : x
  2. Step 2: Convert to fraction form
    132,172/182,373.84 = 74,811.04/x
  3. Step 3: Cross multiply
    132,172x = 182,373.84 × 74,811.04
  4. Step 4: Simplify right side
    132,172x = 13,643,576,639.19
  5. Step 5: Solve for x
    x = 13,643,576,639.19/132,172
  6. Step 6: Final answer
    x = 103,225.92

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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.