Home / 100,169.02-138,232.74-54,846.18

Finding the Fourth Proportional to 100,169.02, 138,232.74 and 54,846.18

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Solution

The fourth proportional to 100,169.02, 138,232.74 and 54,846.18 is: 75,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,169.02 : 138,232.74 = 54,846.18 : x
  2. Step 2: Convert to fraction form
    100,169.02/138,232.74 = 54,846.18/x
  3. Step 3: Cross multiply
    100,169.02x = 138,232.74 × 54,846.18
  4. Step 4: Simplify right side
    100,169.02x = 7,581,537,015.89
  5. Step 5: Solve for x
    x = 7,581,537,015.89/100,169.02
  6. Step 6: Final answer
    x = 75,687.45

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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.