Home / 129,172.40-193,643.80-50,268.16

Finding the Fourth Proportional to 129,172.40, 193,643.80 and 50,268.16

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Solution

The fourth proportional to 129,172.40, 193,643.80 and 50,268.16 is: 75,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,172.40 : 193,643.80 = 50,268.16 : x
  2. Step 2: Convert to fraction form
    129,172.40/193,643.80 = 50,268.16/x
  3. Step 3: Cross multiply
    129,172.40x = 193,643.80 × 50,268.16
  4. Step 4: Simplify right side
    129,172.40x = 9,734,117,521.41
  5. Step 5: Solve for x
    x = 9,734,117,521.41/129,172.40
  6. Step 6: Final answer
    x = 75,357.56

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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.