Home / 213,826.46-320,810.90-71,685.77

Finding the Fourth Proportional to 213,826.46, 320,810.90 and 71,685.77

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Solution

The fourth proportional to 213,826.46, 320,810.90 and 71,685.77 is: 107,552.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,826.46 : 320,810.90 = 71,685.77 : x
  2. Step 2: Convert to fraction form
    213,826.46/320,810.90 = 71,685.77/x
  3. Step 3: Cross multiply
    213,826.46x = 320,810.90 × 71,685.77
  4. Step 4: Simplify right side
    213,826.46x = 22,997,574,428.41
  5. Step 5: Solve for x
    x = 22,997,574,428.41/213,826.46
  6. Step 6: Final answer
    x = 107,552.52

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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.