Home / 109,499.75-151,103.48-61,750.25

Finding the Fourth Proportional to 109,499.75, 151,103.48 and 61,750.25

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Solution

The fourth proportional to 109,499.75, 151,103.48 and 61,750.25 is: 85,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,499.75 : 151,103.48 = 61,750.25 : x
  2. Step 2: Convert to fraction form
    109,499.75/151,103.48 = 61,750.25/x
  3. Step 3: Cross multiply
    109,499.75x = 151,103.48 × 61,750.25
  4. Step 4: Simplify right side
    109,499.75x = 9,330,677,168.24
  5. Step 5: Solve for x
    x = 9,330,677,168.24/109,499.75
  6. Step 6: Final answer
    x = 85,211.86

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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.