Home / 98,196.93-135,475.61-66,315.33

Finding the Fourth Proportional to 98,196.93, 135,475.61 and 66,315.33

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Solution

The fourth proportional to 98,196.93, 135,475.61 and 66,315.33 is: 91,490.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,196.93 : 135,475.61 = 66,315.33 : x
  2. Step 2: Convert to fraction form
    98,196.93/135,475.61 = 66,315.33/x
  3. Step 3: Cross multiply
    98,196.93x = 135,475.61 × 66,315.33
  4. Step 4: Simplify right side
    98,196.93x = 8,984,109,452.52
  5. Step 5: Solve for x
    x = 8,984,109,452.52/98,196.93
  6. Step 6: Final answer
    x = 91,490.74

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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.