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Finding the Fourth Proportional to 174,544.80, 261,644.40 and 85,725.60

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Solution

The fourth proportional to 174,544.80, 261,644.40 and 85,725.60 is: 128,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,544.80 : 261,644.40 = 85,725.60 : x
  2. Step 2: Convert to fraction form
    174,544.80/261,644.40 = 85,725.60/x
  3. Step 3: Cross multiply
    174,544.80x = 261,644.40 × 85,725.60
  4. Step 4: Simplify right side
    174,544.80x = 22,429,623,176.64
  5. Step 5: Solve for x
    x = 22,429,623,176.64/174,544.80
  6. Step 6: Final answer
    x = 128,503.53

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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.