Home / 109,656.96-151,326.69-61,909.26

Finding the Fourth Proportional to 109,656.96, 151,326.69 and 61,909.26

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Solution

The fourth proportional to 109,656.96, 151,326.69 and 61,909.26 is: 85,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,656.96 : 151,326.69 = 61,909.26 : x
  2. Step 2: Convert to fraction form
    109,656.96/151,326.69 = 61,909.26/x
  3. Step 3: Cross multiply
    109,656.96x = 151,326.69 × 61,909.26
  4. Step 4: Simplify right side
    109,656.96x = 9,368,523,396.15
  5. Step 5: Solve for x
    x = 9,368,523,396.15/109,656.96
  6. Step 6: Final answer
    x = 85,434.83

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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.