Home / 131,199.45-181,050.03-77,501.72

Finding the Fourth Proportional to 131,199.45, 181,050.03 and 77,501.72

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Solution

The fourth proportional to 131,199.45, 181,050.03 and 77,501.72 is: 106,949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,199.45 : 181,050.03 = 77,501.72 : x
  2. Step 2: Convert to fraction form
    131,199.45/181,050.03 = 77,501.72/x
  3. Step 3: Cross multiply
    131,199.45x = 181,050.03 × 77,501.72
  4. Step 4: Simplify right side
    131,199.45x = 14,031,687,825.80
  5. Step 5: Solve for x
    x = 14,031,687,825.80/131,199.45
  6. Step 6: Final answer
    x = 106,949.29

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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.