Home / 144,865.36-217,357.83-78,227.02

Finding the Fourth Proportional to 144,865.36, 217,357.83 and 78,227.02

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Solution

The fourth proportional to 144,865.36, 217,357.83 and 78,227.02 is: 117,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,865.36 : 217,357.83 = 78,227.02 : x
  2. Step 2: Convert to fraction form
    144,865.36/217,357.83 = 78,227.02/x
  3. Step 3: Cross multiply
    144,865.36x = 217,357.83 × 78,227.02
  4. Step 4: Simplify right side
    144,865.36x = 17,003,254,363.63
  5. Step 5: Solve for x
    x = 17,003,254,363.63/144,865.36
  6. Step 6: Final answer
    x = 117,372.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.