Home / 135,020.28-186,338.88-74,596.20

Finding the Fourth Proportional to 135,020.28, 186,338.88 and 74,596.20

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Solution

The fourth proportional to 135,020.28, 186,338.88 and 74,596.20 is: 102,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,020.28 : 186,338.88 = 74,596.20 : x
  2. Step 2: Convert to fraction form
    135,020.28/186,338.88 = 74,596.20/x
  3. Step 3: Cross multiply
    135,020.28x = 186,338.88 × 74,596.20
  4. Step 4: Simplify right side
    135,020.28x = 13,900,172,360.26
  5. Step 5: Solve for x
    x = 13,900,172,360.26/135,020.28
  6. Step 6: Final answer
    x = 102,948.77

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1.5x scale

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.