Home / 211,182.42-291,432.77-115,689.13

Finding the Fourth Proportional to 211,182.42, 291,432.77 and 115,689.13

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Solution

The fourth proportional to 211,182.42, 291,432.77 and 115,689.13 is: 159,651.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,182.42 : 291,432.77 = 115,689.13 : x
  2. Step 2: Convert to fraction form
    211,182.42/291,432.77 = 115,689.13/x
  3. Step 3: Cross multiply
    211,182.42x = 291,432.77 × 115,689.13
  4. Step 4: Simplify right side
    211,182.42x = 33,715,602,741.60
  5. Step 5: Solve for x
    x = 33,715,602,741.60/211,182.42
  6. Step 6: Final answer
    x = 159,651.56

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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.