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Finding the Fourth Proportional to 86,797.23, 130,195.85 and 82,364.91

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Solution

The fourth proportional to 86,797.23, 130,195.85 and 82,364.91 is: 123,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,797.23 : 130,195.85 = 82,364.91 : x
  2. Step 2: Convert to fraction form
    86,797.23/130,195.85 = 82,364.91/x
  3. Step 3: Cross multiply
    86,797.23x = 130,195.85 × 82,364.91
  4. Step 4: Simplify right side
    86,797.23x = 10,723,569,055.80
  5. Step 5: Solve for x
    x = 10,723,569,055.80/86,797.23
  6. Step 6: Final answer
    x = 123,547.37

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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.