Home / 109,115.51-150,567.66-61,358.72

Finding the Fourth Proportional to 109,115.51, 150,567.66 and 61,358.72

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Solution

The fourth proportional to 109,115.51, 150,567.66 and 61,358.72 is: 84,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,115.51 : 150,567.66 = 61,358.72 : x
  2. Step 2: Convert to fraction form
    109,115.51/150,567.66 = 61,358.72/x
  3. Step 3: Cross multiply
    109,115.51x = 150,567.66 × 61,358.72
  4. Step 4: Simplify right side
    109,115.51x = 9,238,638,138.16
  5. Step 5: Solve for x
    x = 9,238,638,138.16/109,115.51
  6. Step 6: Final answer
    x = 84,668.43

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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.