Home / 170,729.40-256,094.10-72,220.60

Finding the Fourth Proportional to 170,729.40, 256,094.10 and 72,220.60

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Solution

The fourth proportional to 170,729.40, 256,094.10 and 72,220.60 is: 108,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,729.40 : 256,094.10 = 72,220.60 : x
  2. Step 2: Convert to fraction form
    170,729.40/256,094.10 = 72,220.60/x
  3. Step 3: Cross multiply
    170,729.40x = 256,094.10 × 72,220.60
  4. Step 4: Simplify right side
    170,729.40x = 18,495,269,558.46
  5. Step 5: Solve for x
    x = 18,495,269,558.46/170,729.40
  6. Step 6: Final answer
    x = 108,330.90

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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.