Home / 109,676.71-151,364.08-66,646.27

Finding the Fourth Proportional to 109,676.71, 151,364.08 and 66,646.27

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Solution

The fourth proportional to 109,676.71, 151,364.08 and 66,646.27 is: 91,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,676.71 : 151,364.08 = 66,646.27 : x
  2. Step 2: Convert to fraction form
    109,676.71/151,364.08 = 66,646.27/x
  3. Step 3: Cross multiply
    109,676.71x = 151,364.08 × 66,646.27
  4. Step 4: Simplify right side
    109,676.71x = 10,087,851,241.61
  5. Step 5: Solve for x
    x = 10,087,851,241.61/109,676.71
  6. Step 6: Final answer
    x = 91,978.06

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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.