Home / 144,362.51-199,226.45-80,700.29

Finding the Fourth Proportional to 144,362.51, 199,226.45 and 80,700.29

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Solution

The fourth proportional to 144,362.51, 199,226.45 and 80,700.29 is: 111,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,362.51 : 199,226.45 = 80,700.29 : x
  2. Step 2: Convert to fraction form
    144,362.51/199,226.45 = 80,700.29/x
  3. Step 3: Cross multiply
    144,362.51x = 199,226.45 × 80,700.29
  4. Step 4: Simplify right side
    144,362.51x = 16,077,631,887.17
  5. Step 5: Solve for x
    x = 16,077,631,887.17/144,362.51
  6. Step 6: Final answer
    x = 111,369.86

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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.