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Finding the Fourth Proportional to 150,671.53, 207,919.47 and 90,244.72

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Solution

The fourth proportional to 150,671.53, 207,919.47 and 90,244.72 is: 124,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,671.53 : 207,919.47 = 90,244.72 : x
  2. Step 2: Convert to fraction form
    150,671.53/207,919.47 = 90,244.72/x
  3. Step 3: Cross multiply
    150,671.53x = 207,919.47 × 90,244.72
  4. Step 4: Simplify right side
    150,671.53x = 18,763,634,352.70
  5. Step 5: Solve for x
    x = 18,763,634,352.70/150,671.53
  6. Step 6: Final answer
    x = 124,533.38

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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.