Home / 115,148.52-172,722.78-44,978.63

Finding the Fourth Proportional to 115,148.52, 172,722.78 and 44,978.63

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Solution

The fourth proportional to 115,148.52, 172,722.78 and 44,978.63 is: 67,467.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,148.52 : 172,722.78 = 44,978.63 : x
  2. Step 2: Convert to fraction form
    115,148.52/172,722.78 = 44,978.63/x
  3. Step 3: Cross multiply
    115,148.52x = 172,722.78 × 44,978.63
  4. Step 4: Simplify right side
    115,148.52x = 7,768,833,150.58
  5. Step 5: Solve for x
    x = 7,768,833,150.58/115,148.52
  6. Step 6: Final answer
    x = 67,467.94

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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.