Home / 92,284.20-138,426.30-91,409.40

Finding the Fourth Proportional to 92,284.20, 138,426.30 and 91,409.40

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Solution

The fourth proportional to 92,284.20, 138,426.30 and 91,409.40 is: 137,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,284.20 : 138,426.30 = 91,409.40 : x
  2. Step 2: Convert to fraction form
    92,284.20/138,426.30 = 91,409.40/x
  3. Step 3: Cross multiply
    92,284.20x = 138,426.30 × 91,409.40
  4. Step 4: Simplify right side
    92,284.20x = 12,653,465,027.22
  5. Step 5: Solve for x
    x = 12,653,465,027.22/92,284.20
  6. Step 6: Final answer
    x = 137,114.10

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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.