Home / 99,180.72-136,868.85-53,858.28

Finding the Fourth Proportional to 99,180.72, 136,868.85 and 53,858.28

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Solution

The fourth proportional to 99,180.72, 136,868.85 and 53,858.28 is: 74,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,180.72 : 136,868.85 = 53,858.28 : x
  2. Step 2: Convert to fraction form
    99,180.72/136,868.85 = 53,858.28/x
  3. Step 3: Cross multiply
    99,180.72x = 136,868.85 × 53,858.28
  4. Step 4: Simplify right side
    99,180.72x = 7,371,520,846.58
  5. Step 5: Solve for x
    x = 7,371,520,846.58/99,180.72
  6. Step 6: Final answer
    x = 74,324.13

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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.