Home / 109,660.07-151,329.57-61,915.43

Finding the Fourth Proportional to 109,660.07, 151,329.57 and 61,915.43

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Solution

The fourth proportional to 109,660.07, 151,329.57 and 61,915.43 is: 85,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.07 : 151,329.57 = 61,915.43 : x
  2. Step 2: Convert to fraction form
    109,660.07/151,329.57 = 61,915.43/x
  3. Step 3: Cross multiply
    109,660.07x = 151,329.57 × 61,915.43
  4. Step 4: Simplify right side
    109,660.07x = 9,369,635,398.27
  5. Step 5: Solve for x
    x = 9,369,635,398.27/109,660.07
  6. Step 6: Final answer
    x = 85,442.54

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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.