Home / 211,916.45-317,849.50-69,726.47

Finding the Fourth Proportional to 211,916.45, 317,849.50 and 69,726.47

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Solution

The fourth proportional to 211,916.45, 317,849.50 and 69,726.47 is: 104,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,916.45 : 317,849.50 = 69,726.47 : x
  2. Step 2: Convert to fraction form
    211,916.45/317,849.50 = 69,726.47/x
  3. Step 3: Cross multiply
    211,916.45x = 317,849.50 × 69,726.47
  4. Step 4: Simplify right side
    211,916.45x = 22,162,522,037.02
  5. Step 5: Solve for x
    x = 22,162,522,037.02/211,916.45
  6. Step 6: Final answer
    x = 104,581.41

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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.