Home / 211,139.64-316,759.08-61,383.24

Finding the Fourth Proportional to 211,139.64, 316,759.08 and 61,383.24

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Solution

The fourth proportional to 211,139.64, 316,759.08 and 61,383.24 is: 92,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,139.64 : 316,759.08 = 61,383.24 : x
  2. Step 2: Convert to fraction form
    211,139.64/316,759.08 = 61,383.24/x
  3. Step 3: Cross multiply
    211,139.64x = 316,759.08 × 61,383.24
  4. Step 4: Simplify right side
    211,139.64x = 19,443,698,629.82
  5. Step 5: Solve for x
    x = 19,443,698,629.82/211,139.64
  6. Step 6: Final answer
    x = 92,089.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.