Home / 211,322.10-291,654.36-130,775.54

Finding the Fourth Proportional to 211,322.10, 291,654.36 and 130,775.54

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Solution

The fourth proportional to 211,322.10, 291,654.36 and 130,775.54 is: 180,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,322.10 : 291,654.36 = 130,775.54 : x
  2. Step 2: Convert to fraction form
    211,322.10/291,654.36 = 130,775.54/x
  3. Step 3: Cross multiply
    211,322.10x = 291,654.36 × 130,775.54
  4. Step 4: Simplify right side
    211,322.10x = 38,141,256,422.35
  5. Step 5: Solve for x
    x = 38,141,256,422.35/211,322.10
  6. Step 6: Final answer
    x = 180,488.73

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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.