Home / 98,715.78-136,227.31-53,393.80

Finding the Fourth Proportional to 98,715.78, 136,227.31 and 53,393.80

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Solution

The fourth proportional to 98,715.78, 136,227.31 and 53,393.80 is: 73,683.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,715.78 : 136,227.31 = 53,393.80 : x
  2. Step 2: Convert to fraction form
    98,715.78/136,227.31 = 53,393.80/x
  3. Step 3: Cross multiply
    98,715.78x = 136,227.31 × 53,393.80
  4. Step 4: Simplify right side
    98,715.78x = 7,273,693,744.68
  5. Step 5: Solve for x
    x = 7,273,693,744.68/98,715.78
  6. Step 6: Final answer
    x = 73,683.19

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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.