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Finding the Fourth Proportional to 101,555.65, 140,414.33 and 88,944.25

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Solution

The fourth proportional to 101,555.65, 140,414.33 and 88,944.25 is: 122,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,555.65 : 140,414.33 = 88,944.25 : x
  2. Step 2: Convert to fraction form
    101,555.65/140,414.33 = 88,944.25/x
  3. Step 3: Cross multiply
    101,555.65x = 140,414.33 × 88,944.25
  4. Step 4: Simplify right side
    101,555.65x = 12,489,047,271.10
  5. Step 5: Solve for x
    x = 12,489,047,271.10/101,555.65
  6. Step 6: Final answer
    x = 122,977.38

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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.