Home / 195,211.20-292,816.80-76,886.40

Finding the Fourth Proportional to 195,211.20, 292,816.80 and 76,886.40

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Solution

The fourth proportional to 195,211.20, 292,816.80 and 76,886.40 is: 115,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,211.20 : 292,816.80 = 76,886.40 : x
  2. Step 2: Convert to fraction form
    195,211.20/292,816.80 = 76,886.40/x
  3. Step 3: Cross multiply
    195,211.20x = 292,816.80 × 76,886.40
  4. Step 4: Simplify right side
    195,211.20x = 22,513,629,611.52
  5. Step 5: Solve for x
    x = 22,513,629,611.52/195,211.20
  6. Step 6: Final answer
    x = 115,329.60

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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.