Home / 109,913.92-151,672.98-61,509.44

Finding the Fourth Proportional to 109,913.92, 151,672.98 and 61,509.44

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Solution

The fourth proportional to 109,913.92, 151,672.98 and 61,509.44 is: 84,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,913.92 : 151,672.98 = 61,509.44 : x
  2. Step 2: Convert to fraction form
    109,913.92/151,672.98 = 61,509.44/x
  3. Step 3: Cross multiply
    109,913.92x = 151,672.98 × 61,509.44
  4. Step 4: Simplify right side
    109,913.92x = 9,329,320,062.93
  5. Step 5: Solve for x
    x = 9,329,320,062.93/109,913.92
  6. Step 6: Final answer
    x = 84,878.42

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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.