Home / 100,384.14-150,280.37-87,928.49

Finding the Fourth Proportional to 100,384.14, 150,280.37 and 87,928.49

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Solution

The fourth proportional to 100,384.14, 150,280.37 and 87,928.49 is: 131,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,384.14 : 150,280.37 = 87,928.49 : x
  2. Step 2: Convert to fraction form
    100,384.14/150,280.37 = 87,928.49/x
  3. Step 3: Cross multiply
    100,384.14x = 150,280.37 × 87,928.49
  4. Step 4: Simplify right side
    100,384.14x = 13,213,926,010.74
  5. Step 5: Solve for x
    x = 13,213,926,010.74/100,384.14
  6. Step 6: Final answer
    x = 131,633.60

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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.