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Finding the Fourth Proportional to 148,498.60, 222,704.70 and 81,970.60

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Solution

The fourth proportional to 148,498.60, 222,704.70 and 81,970.60 is: 122,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,498.60 : 222,704.70 = 81,970.60 : x
  2. Step 2: Convert to fraction form
    148,498.60/222,704.70 = 81,970.60/x
  3. Step 3: Cross multiply
    148,498.60x = 222,704.70 × 81,970.60
  4. Step 4: Simplify right side
    148,498.60x = 18,255,237,881.82
  5. Step 5: Solve for x
    x = 18,255,237,881.82/148,498.60
  6. Step 6: Final answer
    x = 122,932.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.