Home / 136,530.96-188,324.78-90,589.62

Finding the Fourth Proportional to 136,530.96, 188,324.78 and 90,589.62

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Solution

The fourth proportional to 136,530.96, 188,324.78 and 90,589.62 is: 124,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,530.96 : 188,324.78 = 90,589.62 : x
  2. Step 2: Convert to fraction form
    136,530.96/188,324.78 = 90,589.62/x
  3. Step 3: Cross multiply
    136,530.96x = 188,324.78 × 90,589.62
  4. Step 4: Simplify right side
    136,530.96x = 17,060,270,256.78
  5. Step 5: Solve for x
    x = 17,060,270,256.78/136,530.96
  6. Step 6: Final answer
    x = 124,955.32

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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.