Home / 144,663.90-217,135.89-69,836.58

Finding the Fourth Proportional to 144,663.90, 217,135.89 and 69,836.58

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Solution

The fourth proportional to 144,663.90, 217,135.89 and 69,836.58 is: 104,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,663.90 : 217,135.89 = 69,836.58 : x
  2. Step 2: Convert to fraction form
    144,663.90/217,135.89 = 69,836.58/x
  3. Step 3: Cross multiply
    144,663.90x = 217,135.89 × 69,836.58
  4. Step 4: Simplify right side
    144,663.90x = 15,164,027,952.86
  5. Step 5: Solve for x
    x = 15,164,027,952.86/144,663.90
  6. Step 6: Final answer
    x = 104,822.47

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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.