Home / 112,986.56-155,923.27-65,244.08

Finding the Fourth Proportional to 112,986.56, 155,923.27 and 65,244.08

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Solution

The fourth proportional to 112,986.56, 155,923.27 and 65,244.08 is: 90,037.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,986.56 : 155,923.27 = 65,244.08 : x
  2. Step 2: Convert to fraction form
    112,986.56/155,923.27 = 65,244.08/x
  3. Step 3: Cross multiply
    112,986.56x = 155,923.27 × 65,244.08
  4. Step 4: Simplify right side
    112,986.56x = 10,173,070,301.74
  5. Step 5: Solve for x
    x = 10,173,070,301.74/112,986.56
  6. Step 6: Final answer
    x = 90,037.88

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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.