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Finding the Fourth Proportional to 109,651.96, 151,320.96 and 64,330.75

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Solution

The fourth proportional to 109,651.96, 151,320.96 and 64,330.75 is: 88,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,651.96 : 151,320.96 = 64,330.75 : x
  2. Step 2: Convert to fraction form
    109,651.96/151,320.96 = 64,330.75/x
  3. Step 3: Cross multiply
    109,651.96x = 151,320.96 × 64,330.75
  4. Step 4: Simplify right side
    109,651.96x = 9,734,590,847.52
  5. Step 5: Solve for x
    x = 9,734,590,847.52/109,651.96
  6. Step 6: Final answer
    x = 88,777.17

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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.