Home / 135,160.64-186,514.14-74,727.76

Finding the Fourth Proportional to 135,160.64, 186,514.14 and 74,727.76

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Solution

The fourth proportional to 135,160.64, 186,514.14 and 74,727.76 is: 103,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,160.64 : 186,514.14 = 74,727.76 : x
  2. Step 2: Convert to fraction form
    135,160.64/186,514.14 = 74,727.76/x
  3. Step 3: Cross multiply
    135,160.64x = 186,514.14 × 74,727.76
  4. Step 4: Simplify right side
    135,160.64x = 13,937,783,424.24
  5. Step 5: Solve for x
    x = 13,937,783,424.24/135,160.64
  6. Step 6: Final answer
    x = 103,120.13

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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.