Home / 211,375.11-291,688.47-126,538.95

Finding the Fourth Proportional to 211,375.11, 291,688.47 and 126,538.95

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Solution

The fourth proportional to 211,375.11, 291,688.47 and 126,538.95 is: 174,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,375.11 : 291,688.47 = 126,538.95 : x
  2. Step 2: Convert to fraction form
    211,375.11/291,688.47 = 126,538.95/x
  3. Step 3: Cross multiply
    211,375.11x = 291,688.47 × 126,538.95
  4. Step 4: Simplify right side
    211,375.11x = 36,909,952,720.91
  5. Step 5: Solve for x
    x = 36,909,952,720.91/211,375.11
  6. Step 6: Final answer
    x = 174,618.25

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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.