Home / 86,934.60-130,596.30-83,392.20

Finding the Fourth Proportional to 86,934.60, 130,596.30 and 83,392.20

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Solution

The fourth proportional to 86,934.60, 130,596.30 and 83,392.20 is: 125,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934.60 : 130,596.30 = 83,392.20 : x
  2. Step 2: Convert to fraction form
    86,934.60/130,596.30 = 83,392.20/x
  3. Step 3: Cross multiply
    86,934.60x = 130,596.30 × 83,392.20
  4. Step 4: Simplify right side
    86,934.60x = 10,890,712,768.86
  5. Step 5: Solve for x
    x = 10,890,712,768.86/86,934.60
  6. Step 6: Final answer
    x = 125,274.78

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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.