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Finding the Fourth Proportional to 121,522.60, 182,283.90 and 74,801.80

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Solution

The fourth proportional to 121,522.60, 182,283.90 and 74,801.80 is: 112,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,522.60 : 182,283.90 = 74,801.80 : x
  2. Step 2: Convert to fraction form
    121,522.60/182,283.90 = 74,801.80/x
  3. Step 3: Cross multiply
    121,522.60x = 182,283.90 × 74,801.80
  4. Step 4: Simplify right side
    121,522.60x = 13,635,163,831.02
  5. Step 5: Solve for x
    x = 13,635,163,831.02/121,522.60
  6. Step 6: Final answer
    x = 112,202.70

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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.