Home / 211,123.32-291,357.18-115,635.24

Finding the Fourth Proportional to 211,123.32, 291,357.18 and 115,635.24

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Solution

The fourth proportional to 211,123.32, 291,357.18 and 115,635.24 is: 159,580.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,123.32 : 291,357.18 = 115,635.24 : x
  2. Step 2: Convert to fraction form
    211,123.32/291,357.18 = 115,635.24/x
  3. Step 3: Cross multiply
    211,123.32x = 291,357.18 × 115,635.24
  4. Step 4: Simplify right side
    211,123.32x = 33,691,157,435.02
  5. Step 5: Solve for x
    x = 33,691,157,435.02/211,123.32
  6. Step 6: Final answer
    x = 159,580.46

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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.