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Finding the Fourth Proportional to 150,795, 208,081.44 and 87,153.12

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Solution

The fourth proportional to 150,795, 208,081.44 and 87,153.12 is: 120,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,795 : 208,081.44 = 87,153.12 : x
  2. Step 2: Convert to fraction form
    150,795/208,081.44 = 87,153.12/x
  3. Step 3: Cross multiply
    150,795x = 208,081.44 × 87,153.12
  4. Step 4: Simplify right side
    150,795x = 18,134,946,710.09
  5. Step 5: Solve for x
    x = 18,134,946,710.09/150,795
  6. Step 6: Final answer
    x = 120,262.25

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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.