Home / 135,383.10-186,835.56-74,960.39

Finding the Fourth Proportional to 135,383.10, 186,835.56 and 74,960.39

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Solution

The fourth proportional to 135,383.10, 186,835.56 and 74,960.39 is: 103,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,383.10 : 186,835.56 = 74,960.39 : x
  2. Step 2: Convert to fraction form
    135,383.10/186,835.56 = 74,960.39/x
  3. Step 3: Cross multiply
    135,383.10x = 186,835.56 × 74,960.39
  4. Step 4: Simplify right side
    135,383.10x = 14,005,266,000.16
  5. Step 5: Solve for x
    x = 14,005,266,000.16/135,383.10
  6. Step 6: Final answer
    x = 103,449.15

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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.