Home / 98,713.10-136,223.64-53,391.12

Finding the Fourth Proportional to 98,713.10, 136,223.64 and 53,391.12

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Solution

The fourth proportional to 98,713.10, 136,223.64 and 53,391.12 is: 73,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,713.10 : 136,223.64 = 53,391.12 : x
  2. Step 2: Convert to fraction form
    98,713.10/136,223.64 = 53,391.12/x
  3. Step 3: Cross multiply
    98,713.10x = 136,223.64 × 53,391.12
  4. Step 4: Simplify right side
    98,713.10x = 7,273,132,710.08
  5. Step 5: Solve for x
    x = 7,273,132,710.08/98,713.10
  6. Step 6: Final answer
    x = 73,679.51

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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.