Home / 131,377.03-181,289.88-85,983.13

Finding the Fourth Proportional to 131,377.03, 181,289.88 and 85,983.13

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Solution

The fourth proportional to 131,377.03, 181,289.88 and 85,983.13 is: 118,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,377.03 : 181,289.88 = 85,983.13 : x
  2. Step 2: Convert to fraction form
    131,377.03/181,289.88 = 85,983.13/x
  3. Step 3: Cross multiply
    131,377.03x = 181,289.88 × 85,983.13
  4. Step 4: Simplify right side
    131,377.03x = 15,587,871,319.72
  5. Step 5: Solve for x
    x = 15,587,871,319.72/131,377.03
  6. Step 6: Final answer
    x = 118,649.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.