Home / 145,377.93-217,924.53-81,367.34

Finding the Fourth Proportional to 145,377.93, 217,924.53 and 81,367.34

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Solution

The fourth proportional to 145,377.93, 217,924.53 and 81,367.34 is: 121,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,377.93 : 217,924.53 = 81,367.34 : x
  2. Step 2: Convert to fraction form
    145,377.93/217,924.53 = 81,367.34/x
  3. Step 3: Cross multiply
    145,377.93x = 217,924.53 × 81,367.34
  4. Step 4: Simplify right side
    145,377.93x = 17,731,939,326.85
  5. Step 5: Solve for x
    x = 17,731,939,326.85/145,377.93
  6. Step 6: Final answer
    x = 121,971.33

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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.