Home / 109,945.20-151,728.04-64,622.52

Finding the Fourth Proportional to 109,945.20, 151,728.04 and 64,622.52

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Solution

The fourth proportional to 109,945.20, 151,728.04 and 64,622.52 is: 89,181.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,945.20 : 151,728.04 = 64,622.52 : x
  2. Step 2: Convert to fraction form
    109,945.20/151,728.04 = 64,622.52/x
  3. Step 3: Cross multiply
    109,945.20x = 151,728.04 × 64,622.52
  4. Step 4: Simplify right side
    109,945.20x = 9,805,048,299.46
  5. Step 5: Solve for x
    x = 9,805,048,299.46/109,945.20
  6. Step 6: Final answer
    x = 89,181.23

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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.