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Finding the Fourth Proportional to 150,021.34, 207,027.44 and 85,494.41

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Solution

The fourth proportional to 150,021.34, 207,027.44 and 85,494.41 is: 117,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,021.34 : 207,027.44 = 85,494.41 : x
  2. Step 2: Convert to fraction form
    150,021.34/207,027.44 = 85,494.41/x
  3. Step 3: Cross multiply
    150,021.34x = 207,027.44 × 85,494.41
  4. Step 4: Simplify right side
    150,021.34x = 17,699,688,836.61
  5. Step 5: Solve for x
    x = 17,699,688,836.61/150,021.34
  6. Step 6: Final answer
    x = 117,981.14

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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.