Home / 109,548.21-151,176.09-61,801.56

Finding the Fourth Proportional to 109,548.21, 151,176.09 and 61,801.56

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Solution

The fourth proportional to 109,548.21, 151,176.09 and 61,801.56 is: 85,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,548.21 : 151,176.09 = 61,801.56 : x
  2. Step 2: Convert to fraction form
    109,548.21/151,176.09 = 61,801.56/x
  3. Step 3: Cross multiply
    109,548.21x = 151,176.09 × 61,801.56
  4. Step 4: Simplify right side
    109,548.21x = 9,342,918,196.70
  5. Step 5: Solve for x
    x = 9,342,918,196.70/109,548.21
  6. Step 6: Final answer
    x = 85,285.90

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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.