Home / 135,034.28-186,399.80-120,862.52

Finding the Fourth Proportional to 135,034.28, 186,399.80 and 120,862.52

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Solution

The fourth proportional to 135,034.28, 186,399.80 and 120,862.52 is: 166,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,034.28 : 186,399.80 = 120,862.52 : x
  2. Step 2: Convert to fraction form
    135,034.28/186,399.80 = 120,862.52/x
  3. Step 3: Cross multiply
    135,034.28x = 186,399.80 × 120,862.52
  4. Step 4: Simplify right side
    135,034.28x = 22,528,748,019.18
  5. Step 5: Solve for x
    x = 22,528,748,019.18/135,034.28
  6. Step 6: Final answer
    x = 166,837.26

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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.