Home / 115,148.90-172,723.34-44,979

Finding the Fourth Proportional to 115,148.90, 172,723.34 and 44,979

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Solution

The fourth proportional to 115,148.90, 172,723.34 and 44,979 is: 67,468.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,148.90 : 172,723.34 = 44,979 : x
  2. Step 2: Convert to fraction form
    115,148.90/172,723.34 = 44,979/x
  3. Step 3: Cross multiply
    115,148.90x = 172,723.34 × 44,979
  4. Step 4: Simplify right side
    115,148.90x = 7,768,923,222.31
  5. Step 5: Solve for x
    x = 7,768,923,222.31/115,148.90
  6. Step 6: Final answer
    x = 67,468.50

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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.