Home / 144,866.36-217,359.33-78,228.02

Finding the Fourth Proportional to 144,866.36, 217,359.33 and 78,228.02

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Solution

The fourth proportional to 144,866.36, 217,359.33 and 78,228.02 is: 117,374.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,866.36 : 217,359.33 = 78,228.02 : x
  2. Step 2: Convert to fraction form
    144,866.36/217,359.33 = 78,228.02/x
  3. Step 3: Cross multiply
    144,866.36x = 217,359.33 × 78,228.02
  4. Step 4: Simplify right side
    144,866.36x = 17,003,590,014.43
  5. Step 5: Solve for x
    x = 17,003,590,014.43/144,866.36
  6. Step 6: Final answer
    x = 117,374.32

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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.