Home / 109,478.05-151,093.16-61,730.44

Finding the Fourth Proportional to 109,478.05, 151,093.16 and 61,730.44

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Solution

The fourth proportional to 109,478.05, 151,093.16 and 61,730.44 is: 85,195.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,478.05 : 151,093.16 = 61,730.44 : x
  2. Step 2: Convert to fraction form
    109,478.05/151,093.16 = 61,730.44/x
  3. Step 3: Cross multiply
    109,478.05x = 151,093.16 × 61,730.44
  4. Step 4: Simplify right side
    109,478.05x = 9,327,047,247.79
  5. Step 5: Solve for x
    x = 9,327,047,247.79/109,478.05
  6. Step 6: Final answer
    x = 85,195.59

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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.