Home / 99,369.02-137,122.19-54,046.08

Finding the Fourth Proportional to 99,369.02, 137,122.19 and 54,046.08

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Solution

The fourth proportional to 99,369.02, 137,122.19 and 54,046.08 is: 74,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,369.02 : 137,122.19 = 54,046.08 : x
  2. Step 2: Convert to fraction form
    99,369.02/137,122.19 = 54,046.08/x
  3. Step 3: Cross multiply
    99,369.02x = 137,122.19 × 54,046.08
  4. Step 4: Simplify right side
    99,369.02x = 7,410,915,894.67
  5. Step 5: Solve for x
    x = 7,410,915,894.67/99,369.02
  6. Step 6: Final answer
    x = 74,579.74

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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.