Home / 194,979.20-292,468.80-76,654.40

Finding the Fourth Proportional to 194,979.20, 292,468.80 and 76,654.40

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Solution

The fourth proportional to 194,979.20, 292,468.80 and 76,654.40 is: 114,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,979.20 : 292,468.80 = 76,654.40 : x
  2. Step 2: Convert to fraction form
    194,979.20/292,468.80 = 76,654.40/x
  3. Step 3: Cross multiply
    194,979.20x = 292,468.80 × 76,654.40
  4. Step 4: Simplify right side
    194,979.20x = 22,419,020,382.72
  5. Step 5: Solve for x
    x = 22,419,020,382.72/194,979.20
  6. Step 6: Final answer
    x = 114,981.60

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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.