Home / 97,723.40-146,412.30-86,664.20

Finding the Fourth Proportional to 97,723.40, 146,412.30 and 86,664.20

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Solution

The fourth proportional to 97,723.40, 146,412.30 and 86,664.20 is: 129,843.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,723.40 : 146,412.30 = 86,664.20 : x
  2. Step 2: Convert to fraction form
    97,723.40/146,412.30 = 86,664.20/x
  3. Step 3: Cross multiply
    97,723.40x = 146,412.30 × 86,664.20
  4. Step 4: Simplify right side
    97,723.40x = 12,688,704,849.66
  5. Step 5: Solve for x
    x = 12,688,704,849.66/97,723.40
  6. Step 6: Final answer
    x = 129,843.06

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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.