Home / 99,238.70-136,948.67-53,917.05

Finding the Fourth Proportional to 99,238.70, 136,948.67 and 53,917.05

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Solution

The fourth proportional to 99,238.70, 136,948.67 and 53,917.05 is: 74,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,238.70 : 136,948.67 = 53,917.05 : x
  2. Step 2: Convert to fraction form
    99,238.70/136,948.67 = 53,917.05/x
  3. Step 3: Cross multiply
    99,238.70x = 136,948.67 × 53,917.05
  4. Step 4: Simplify right side
    99,238.70x = 7,383,868,287.82
  5. Step 5: Solve for x
    x = 7,383,868,287.82/99,238.70
  6. Step 6: Final answer
    x = 74,405.13

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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.