Home / 211,487.66-291,849-119,605.72

Finding the Fourth Proportional to 211,487.66, 291,849 and 119,605.72

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Solution

The fourth proportional to 211,487.66, 291,849 and 119,605.72 is: 165,053.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,487.66 : 291,849 = 119,605.72 : x
  2. Step 2: Convert to fraction form
    211,487.66/291,849 = 119,605.72/x
  3. Step 3: Cross multiply
    211,487.66x = 291,849 × 119,605.72
  4. Step 4: Simplify right side
    211,487.66x = 34,906,809,776.28
  5. Step 5: Solve for x
    x = 34,906,809,776.28/211,487.66
  6. Step 6: Final answer
    x = 165,053.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.