Home / 99,190.91-136,850.15-56,164.52

Finding the Fourth Proportional to 99,190.91, 136,850.15 and 56,164.52

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Solution

The fourth proportional to 99,190.91, 136,850.15 and 56,164.52 is: 77,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,190.91 : 136,850.15 = 56,164.52 : x
  2. Step 2: Convert to fraction form
    99,190.91/136,850.15 = 56,164.52/x
  3. Step 3: Cross multiply
    99,190.91x = 136,850.15 × 56,164.52
  4. Step 4: Simplify right side
    99,190.91x = 7,686,122,442.84
  5. Step 5: Solve for x
    x = 7,686,122,442.84/99,190.91
  6. Step 6: Final answer
    x = 77,488.18

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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.