Home / 135,184.40-186,546.90-74,751.38

Finding the Fourth Proportional to 135,184.40, 186,546.90 and 74,751.38

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Solution

The fourth proportional to 135,184.40, 186,546.90 and 74,751.38 is: 103,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,184.40 : 186,546.90 = 74,751.38 : x
  2. Step 2: Convert to fraction form
    135,184.40/186,546.90 = 74,751.38/x
  3. Step 3: Cross multiply
    135,184.40x = 186,546.90 × 74,751.38
  4. Step 4: Simplify right side
    135,184.40x = 13,944,638,209.72
  5. Step 5: Solve for x
    x = 13,944,638,209.72/135,184.40
  6. Step 6: Final answer
    x = 103,152.72

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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.