Home / 131,829.75-181,924.74-71,400.42

Finding the Fourth Proportional to 131,829.75, 181,924.74 and 71,400.42

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Solution

The fourth proportional to 131,829.75, 181,924.74 and 71,400.42 is: 98,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,829.75 : 181,924.74 = 71,400.42 : x
  2. Step 2: Convert to fraction form
    131,829.75/181,924.74 = 71,400.42/x
  3. Step 3: Cross multiply
    131,829.75x = 181,924.74 × 71,400.42
  4. Step 4: Simplify right side
    131,829.75x = 12,989,502,844.39
  5. Step 5: Solve for x
    x = 12,989,502,844.39/131,829.75
  6. Step 6: Final answer
    x = 98,532.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.