Home / 109,535.88-151,161.24-61,790.16

Finding the Fourth Proportional to 109,535.88, 151,161.24 and 61,790.16

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Solution

The fourth proportional to 109,535.88, 151,161.24 and 61,790.16 is: 85,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,535.88 : 151,161.24 = 61,790.16 : x
  2. Step 2: Convert to fraction form
    109,535.88/151,161.24 = 61,790.16/x
  3. Step 3: Cross multiply
    109,535.88x = 151,161.24 × 61,790.16
  4. Step 4: Simplify right side
    109,535.88x = 9,340,277,205.40
  5. Step 5: Solve for x
    x = 9,340,277,205.40/109,535.88
  6. Step 6: Final answer
    x = 85,271.39

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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.