Home / 100,914.24-151,319.52-45,480

Finding the Fourth Proportional to 100,914.24, 151,319.52 and 45,480

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Solution

The fourth proportional to 100,914.24, 151,319.52 and 45,480 is: 68,196.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,914.24 : 151,319.52 = 45,480 : x
  2. Step 2: Convert to fraction form
    100,914.24/151,319.52 = 45,480/x
  3. Step 3: Cross multiply
    100,914.24x = 151,319.52 × 45,480
  4. Step 4: Simplify right side
    100,914.24x = 6,882,011,769.60
  5. Step 5: Solve for x
    x = 6,882,011,769.60/100,914.24
  6. Step 6: Final answer
    x = 68,196.64

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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.