Home / 99,116.41-136,780.78-53,794.39

Finding the Fourth Proportional to 99,116.41, 136,780.78 and 53,794.39

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Solution

The fourth proportional to 99,116.41, 136,780.78 and 53,794.39 is: 74,236.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,116.41 : 136,780.78 = 53,794.39 : x
  2. Step 2: Convert to fraction form
    99,116.41/136,780.78 = 53,794.39/x
  3. Step 3: Cross multiply
    99,116.41x = 136,780.78 × 53,794.39
  4. Step 4: Simplify right side
    99,116.41x = 7,358,038,660.31
  5. Step 5: Solve for x
    x = 7,358,038,660.31/99,116.41
  6. Step 6: Final answer
    x = 74,236.33

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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.