Home / 144,684.56-217,089.08-78,111.47

Finding the Fourth Proportional to 144,684.56, 217,089.08 and 78,111.47

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Solution

The fourth proportional to 144,684.56, 217,089.08 and 78,111.47 is: 117,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,684.56 : 217,089.08 = 78,111.47 : x
  2. Step 2: Convert to fraction form
    144,684.56/217,089.08 = 78,111.47/x
  3. Step 3: Cross multiply
    144,684.56x = 217,089.08 × 78,111.47
  4. Step 4: Simplify right side
    144,684.56x = 16,957,145,683.74
  5. Step 5: Solve for x
    x = 16,957,145,683.74/144,684.56
  6. Step 6: Final answer
    x = 117,200.80

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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.