Home / 131,755.95-181,853.10-103,018.77

Finding the Fourth Proportional to 131,755.95, 181,853.10 and 103,018.77

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Solution

The fourth proportional to 131,755.95, 181,853.10 and 103,018.77 is: 142,189.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,755.95 : 181,853.10 = 103,018.77 : x
  2. Step 2: Convert to fraction form
    131,755.95/181,853.10 = 103,018.77/x
  3. Step 3: Cross multiply
    131,755.95x = 181,853.10 × 103,018.77
  4. Step 4: Simplify right side
    131,755.95x = 18,734,282,682.69
  5. Step 5: Solve for x
    x = 18,734,282,682.69/131,755.95
  6. Step 6: Final answer
    x = 142,189.27

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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.