Home / 150,847.47-208,146.39-87,172.98

Finding the Fourth Proportional to 150,847.47, 208,146.39 and 87,172.98

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Solution

The fourth proportional to 150,847.47, 208,146.39 and 87,172.98 is: 120,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,847.47 : 208,146.39 = 87,172.98 : x
  2. Step 2: Convert to fraction form
    150,847.47/208,146.39 = 87,172.98/x
  3. Step 3: Cross multiply
    150,847.47x = 208,146.39 × 87,172.98
  4. Step 4: Simplify right side
    150,847.47x = 18,144,741,092.54
  5. Step 5: Solve for x
    x = 18,144,741,092.54/150,847.47
  6. Step 6: Final answer
    x = 120,285.35

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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.