Home / 131,647.16-181,669.74-77,933

Finding the Fourth Proportional to 131,647.16, 181,669.74 and 77,933

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Solution

The fourth proportional to 131,647.16, 181,669.74 and 77,933 is: 107,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,647.16 : 181,669.74 = 77,933 : x
  2. Step 2: Convert to fraction form
    131,647.16/181,669.74 = 77,933/x
  3. Step 3: Cross multiply
    131,647.16x = 181,669.74 × 77,933
  4. Step 4: Simplify right side
    131,647.16x = 14,158,067,847.42
  5. Step 5: Solve for x
    x = 14,158,067,847.42/131,647.16
  6. Step 6: Final answer
    x = 107,545.56

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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.