Home / 195,365.12-292,850.16-76,990.40

Finding the Fourth Proportional to 195,365.12, 292,850.16 and 76,990.40

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Solution

The fourth proportional to 195,365.12, 292,850.16 and 76,990.40 is: 115,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,365.12 : 292,850.16 = 76,990.40 : x
  2. Step 2: Convert to fraction form
    195,365.12/292,850.16 = 76,990.40/x
  3. Step 3: Cross multiply
    195,365.12x = 292,850.16 × 76,990.40
  4. Step 4: Simplify right side
    195,365.12x = 22,546,650,958.46
  5. Step 5: Solve for x
    x = 22,546,650,958.46/195,365.12
  6. Step 6: Final answer
    x = 115,407.76

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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.