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Finding the Fourth Proportional to 150,597.39, 207,830.97 and 90,156.39

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Solution

The fourth proportional to 150,597.39, 207,830.97 and 90,156.39 is: 124,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,597.39 : 207,830.97 = 90,156.39 : x
  2. Step 2: Convert to fraction form
    150,597.39/207,830.97 = 90,156.39/x
  3. Step 3: Cross multiply
    150,597.39x = 207,830.97 × 90,156.39
  4. Step 4: Simplify right side
    150,597.39x = 18,737,289,985.40
  5. Step 5: Solve for x
    x = 18,737,289,985.40/150,597.39
  6. Step 6: Final answer
    x = 124,419.75

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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.