Home / 98,151.24-135,312.66-66,269.64

Finding the Fourth Proportional to 98,151.24, 135,312.66 and 66,269.64

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Solution

The fourth proportional to 98,151.24, 135,312.66 and 66,269.64 is: 91,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,151.24 : 135,312.66 = 66,269.64 : x
  2. Step 2: Convert to fraction form
    98,151.24/135,312.66 = 66,269.64/x
  3. Step 3: Cross multiply
    98,151.24x = 135,312.66 × 66,269.64
  4. Step 4: Simplify right side
    98,151.24x = 8,967,121,265.64
  5. Step 5: Solve for x
    x = 8,967,121,265.64/98,151.24
  6. Step 6: Final answer
    x = 91,360.24

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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.