Home / 135,313.10-186,727.47-74,886.29

Finding the Fourth Proportional to 135,313.10, 186,727.47 and 74,886.29

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Solution

The fourth proportional to 135,313.10, 186,727.47 and 74,886.29 is: 103,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,313.10 : 186,727.47 = 74,886.29 : x
  2. Step 2: Convert to fraction form
    135,313.10/186,727.47 = 74,886.29/x
  3. Step 3: Cross multiply
    135,313.10x = 186,727.47 × 74,886.29
  4. Step 4: Simplify right side
    135,313.10x = 13,983,327,469.39
  5. Step 5: Solve for x
    x = 13,983,327,469.39/135,313.10
  6. Step 6: Final answer
    x = 103,340.53

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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.