Home / 211,710.09-317,149.92-122,776.76

Finding the Fourth Proportional to 211,710.09, 317,149.92 and 122,776.76

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Solution

The fourth proportional to 211,710.09, 317,149.92 and 122,776.76 is: 183,924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,710.09 : 317,149.92 = 122,776.76 : x
  2. Step 2: Convert to fraction form
    211,710.09/317,149.92 = 122,776.76/x
  3. Step 3: Cross multiply
    211,710.09x = 317,149.92 × 122,776.76
  4. Step 4: Simplify right side
    211,710.09x = 38,938,638,026.11
  5. Step 5: Solve for x
    x = 38,938,638,026.11/211,710.09
  6. Step 6: Final answer
    x = 183,924.34

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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.