Home / 74,220.60-111,330.90-69,943.80

Finding the Fourth Proportional to 74,220.60, 111,330.90 and 69,943.80

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Solution

The fourth proportional to 74,220.60, 111,330.90 and 69,943.80 is: 104,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,220.60 : 111,330.90 = 69,943.80 : x
  2. Step 2: Convert to fraction form
    74,220.60/111,330.90 = 69,943.80/x
  3. Step 3: Cross multiply
    74,220.60x = 111,330.90 × 69,943.80
  4. Step 4: Simplify right side
    74,220.60x = 7,786,906,203.42
  5. Step 5: Solve for x
    x = 7,786,906,203.42/74,220.60
  6. Step 6: Final answer
    x = 104,915.70

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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.