Home / 112,218.96-154,839.60-71,399.28

Finding the Fourth Proportional to 112,218.96, 154,839.60 and 71,399.28

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Solution

The fourth proportional to 112,218.96, 154,839.60 and 71,399.28 is: 98,516.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.96 : 154,839.60 = 71,399.28 : x
  2. Step 2: Convert to fraction form
    112,218.96/154,839.60 = 71,399.28/x
  3. Step 3: Cross multiply
    112,218.96x = 154,839.60 × 71,399.28
  4. Step 4: Simplify right side
    112,218.96x = 11,055,435,955.49
  5. Step 5: Solve for x
    x = 11,055,435,955.49/112,218.96
  6. Step 6: Final answer
    x = 98,516.65

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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.