Home / 343,826.98-515,683.87-91,123.18

Finding the Fourth Proportional to 343,826.98, 515,683.87 and 91,123.18

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Solution

The fourth proportional to 343,826.98, 515,683.87 and 91,123.18 is: 136,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,826.98 : 515,683.87 = 91,123.18 : x
  2. Step 2: Convert to fraction form
    343,826.98/515,683.87 = 91,123.18/x
  3. Step 3: Cross multiply
    343,826.98x = 515,683.87 × 91,123.18
  4. Step 4: Simplify right side
    343,826.98x = 46,990,752,592.09
  5. Step 5: Solve for x
    x = 46,990,752,592.09/343,826.98
  6. Step 6: Final answer
    x = 136,669.77

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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.