Home / 211,146.27-291,381.90-115,656.39

Finding the Fourth Proportional to 211,146.27, 291,381.90 and 115,656.39

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Solution

The fourth proportional to 211,146.27, 291,381.90 and 115,656.39 is: 159,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,146.27 : 291,381.90 = 115,656.39 : x
  2. Step 2: Convert to fraction form
    211,146.27/291,381.90 = 115,656.39/x
  3. Step 3: Cross multiply
    211,146.27x = 291,381.90 × 115,656.39
  4. Step 4: Simplify right side
    211,146.27x = 33,700,178,665.34
  5. Step 5: Solve for x
    x = 33,700,178,665.34/211,146.27
  6. Step 6: Final answer
    x = 159,605.84

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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.