Home / 100,767.72-151,143.66-30,646.92

Finding the Fourth Proportional to 100,767.72, 151,143.66 and 30,646.92

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Solution

The fourth proportional to 100,767.72, 151,143.66 and 30,646.92 is: 45,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,767.72 : 151,143.66 = 30,646.92 : x
  2. Step 2: Convert to fraction form
    100,767.72/151,143.66 = 30,646.92/x
  3. Step 3: Cross multiply
    100,767.72x = 151,143.66 × 30,646.92
  4. Step 4: Simplify right side
    100,767.72x = 4,632,087,656.53
  5. Step 5: Solve for x
    x = 4,632,087,656.53/100,767.72
  6. Step 6: Final answer
    x = 45,967.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.