Home / 181,965.15-251,130.39-101,405.79

Finding the Fourth Proportional to 181,965.15, 251,130.39 and 101,405.79

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Solution

The fourth proportional to 181,965.15, 251,130.39 and 101,405.79 is: 139,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,965.15 : 251,130.39 = 101,405.79 : x
  2. Step 2: Convert to fraction form
    181,965.15/251,130.39 = 101,405.79/x
  3. Step 3: Cross multiply
    181,965.15x = 251,130.39 × 101,405.79
  4. Step 4: Simplify right side
    181,965.15x = 25,466,075,590.96
  5. Step 5: Solve for x
    x = 25,466,075,590.96/181,965.15
  6. Step 6: Final answer
    x = 139,950.29

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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.