Home / 99,342.57-137,453.75-86,622.26

Finding the Fourth Proportional to 99,342.57, 137,453.75 and 86,622.26

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Solution

The fourth proportional to 99,342.57, 137,453.75 and 86,622.26 is: 119,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,342.57 : 137,453.75 = 86,622.26 : x
  2. Step 2: Convert to fraction form
    99,342.57/137,453.75 = 86,622.26/x
  3. Step 3: Cross multiply
    99,342.57x = 137,453.75 × 86,622.26
  4. Step 4: Simplify right side
    99,342.57x = 11,906,554,470.48
  5. Step 5: Solve for x
    x = 11,906,554,470.48/99,342.57
  6. Step 6: Final answer
    x = 119,853.50

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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.