Home / 149,147.49-223,516.71-78,886.47

Finding the Fourth Proportional to 149,147.49, 223,516.71 and 78,886.47

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Solution

The fourth proportional to 149,147.49, 223,516.71 and 78,886.47 is: 118,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,147.49 : 223,516.71 = 78,886.47 : x
  2. Step 2: Convert to fraction form
    149,147.49/223,516.71 = 78,886.47/x
  3. Step 3: Cross multiply
    149,147.49x = 223,516.71 × 78,886.47
  4. Step 4: Simplify right side
    149,147.49x = 17,632,444,237.91
  5. Step 5: Solve for x
    x = 17,632,444,237.91/149,147.49
  6. Step 6: Final answer
    x = 118,221.53

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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.