Home / 120,995.40-181,381.32-64,874.55

Finding the Fourth Proportional to 120,995.40, 181,381.32 and 64,874.55

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Solution

The fourth proportional to 120,995.40, 181,381.32 and 64,874.55 is: 97,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,995.40 : 181,381.32 = 64,874.55 : x
  2. Step 2: Convert to fraction form
    120,995.40/181,381.32 = 64,874.55/x
  3. Step 3: Cross multiply
    120,995.40x = 181,381.32 × 64,874.55
  4. Step 4: Simplify right side
    120,995.40x = 11,767,031,513.41
  5. Step 5: Solve for x
    x = 11,767,031,513.41/120,995.40
  6. Step 6: Final answer
    x = 97,251.89

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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.