Home / 214,975.10-322,465.80-81,862.72

Finding the Fourth Proportional to 214,975.10, 322,465.80 and 81,862.72

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Solution

The fourth proportional to 214,975.10, 322,465.80 and 81,862.72 is: 122,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,975.10 : 322,465.80 = 81,862.72 : x
  2. Step 2: Convert to fraction form
    214,975.10/322,465.80 = 81,862.72/x
  3. Step 3: Cross multiply
    214,975.10x = 322,465.80 × 81,862.72
  4. Step 4: Simplify right side
    214,975.10x = 26,397,927,494.98
  5. Step 5: Solve for x
    x = 26,397,927,494.98/214,975.10
  6. Step 6: Final answer
    x = 122,795.28

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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.