Home / 99,400.46-137,173.22-54,078.76

Finding the Fourth Proportional to 99,400.46, 137,173.22 and 54,078.76

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Solution

The fourth proportional to 99,400.46, 137,173.22 and 54,078.76 is: 74,629.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,400.46 : 137,173.22 = 54,078.76 : x
  2. Step 2: Convert to fraction form
    99,400.46/137,173.22 = 54,078.76/x
  3. Step 3: Cross multiply
    99,400.46x = 137,173.22 × 54,078.76
  4. Step 4: Simplify right side
    99,400.46x = 7,418,157,435.07
  5. Step 5: Solve for x
    x = 7,418,157,435.07/99,400.46
  6. Step 6: Final answer
    x = 74,629.01

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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.