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Finding the Fourth Proportional to 101,613.54, 140,295.12 and 63,431.22

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Solution

The fourth proportional to 101,613.54, 140,295.12 and 63,431.22 is: 87,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,613.54 : 140,295.12 = 63,431.22 : x
  2. Step 2: Convert to fraction form
    101,613.54/140,295.12 = 63,431.22/x
  3. Step 3: Cross multiply
    101,613.54x = 140,295.12 × 63,431.22
  4. Step 4: Simplify right side
    101,613.54x = 8,899,090,621.65
  5. Step 5: Solve for x
    x = 8,899,090,621.65/101,613.54
  6. Step 6: Final answer
    x = 87,577.80

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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.