Home / 343,847.23-515,714.24-91,143.43

Finding the Fourth Proportional to 343,847.23, 515,714.24 and 91,143.43

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Solution

The fourth proportional to 343,847.23, 515,714.24 and 91,143.43 is: 136,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,847.23 : 515,714.24 = 91,143.43 : x
  2. Step 2: Convert to fraction form
    343,847.23/515,714.24 = 91,143.43/x
  3. Step 3: Cross multiply
    343,847.23x = 515,714.24 × 91,143.43
  4. Step 4: Simplify right side
    343,847.23x = 47,003,963,672.02
  5. Step 5: Solve for x
    x = 47,003,963,672.02/343,847.23
  6. Step 6: Final answer
    x = 136,700.14

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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.