Home / 211,372.17-291,685.86-115,876.77

Finding the Fourth Proportional to 211,372.17, 291,685.86 and 115,876.77

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Solution

The fourth proportional to 211,372.17, 291,685.86 and 115,876.77 is: 159,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,372.17 : 291,685.86 = 115,876.77 : x
  2. Step 2: Convert to fraction form
    211,372.17/291,685.86 = 115,876.77/x
  3. Step 3: Cross multiply
    211,372.17x = 291,685.86 × 115,876.77
  4. Step 4: Simplify right side
    211,372.17x = 33,799,615,311.47
  5. Step 5: Solve for x
    x = 33,799,615,311.47/211,372.17
  6. Step 6: Final answer
    x = 159,905.70

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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.