Home / 109,635.66-151,271.55-64,311.30

Finding the Fourth Proportional to 109,635.66, 151,271.55 and 64,311.30

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Solution

The fourth proportional to 109,635.66, 151,271.55 and 64,311.30 is: 88,734.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,635.66 : 151,271.55 = 64,311.30 : x
  2. Step 2: Convert to fraction form
    109,635.66/151,271.55 = 64,311.30/x
  3. Step 3: Cross multiply
    109,635.66x = 151,271.55 × 64,311.30
  4. Step 4: Simplify right side
    109,635.66x = 9,728,470,033.52
  5. Step 5: Solve for x
    x = 9,728,470,033.52/109,635.66
  6. Step 6: Final answer
    x = 88,734.54

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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.