Home / 195,307.57-292,984.80-68,921.72

Finding the Fourth Proportional to 195,307.57, 292,984.80 and 68,921.72

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Solution

The fourth proportional to 195,307.57, 292,984.80 and 68,921.72 is: 103,390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,307.57 : 292,984.80 = 68,921.72 : x
  2. Step 2: Convert to fraction form
    195,307.57/292,984.80 = 68,921.72/x
  3. Step 3: Cross multiply
    195,307.57x = 292,984.80 × 68,921.72
  4. Step 4: Simplify right side
    195,307.57x = 20,193,015,725.17
  5. Step 5: Solve for x
    x = 20,193,015,725.17/195,307.57
  6. Step 6: Final answer
    x = 103,390.85

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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.