Home / 99,022.74-136,670.31-77,469.54

Finding the Fourth Proportional to 99,022.74, 136,670.31 and 77,469.54

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Solution

The fourth proportional to 99,022.74, 136,670.31 and 77,469.54 is: 106,922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,022.74 : 136,670.31 = 77,469.54 : x
  2. Step 2: Convert to fraction form
    99,022.74/136,670.31 = 77,469.54/x
  3. Step 3: Cross multiply
    99,022.74x = 136,670.31 × 77,469.54
  4. Step 4: Simplify right side
    99,022.74x = 10,587,786,047.36
  5. Step 5: Solve for x
    x = 10,587,786,047.36/99,022.74
  6. Step 6: Final answer
    x = 106,922.77

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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.