Home / 91,884.16-126,847.38-78,598.14

Finding the Fourth Proportional to 91,884.16, 126,847.38 and 78,598.14

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Solution

The fourth proportional to 91,884.16, 126,847.38 and 78,598.14 is: 108,505.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,884.16 : 126,847.38 = 78,598.14 : x
  2. Step 2: Convert to fraction form
    91,884.16/126,847.38 = 78,598.14/x
  3. Step 3: Cross multiply
    91,884.16x = 126,847.38 × 78,598.14
  4. Step 4: Simplify right side
    91,884.16x = 9,969,968,131.87
  5. Step 5: Solve for x
    x = 9,969,968,131.87/91,884.16
  6. Step 6: Final answer
    x = 108,505.84

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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.