Home / 92,298.20-138,447.30-91,423.40

Finding the Fourth Proportional to 92,298.20, 138,447.30 and 91,423.40

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Solution

The fourth proportional to 92,298.20, 138,447.30 and 91,423.40 is: 137,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,298.20 : 138,447.30 = 91,423.40 : x
  2. Step 2: Convert to fraction form
    92,298.20/138,447.30 = 91,423.40/x
  3. Step 3: Cross multiply
    92,298.20x = 138,447.30 × 91,423.40
  4. Step 4: Simplify right side
    92,298.20x = 12,657,322,886.82
  5. Step 5: Solve for x
    x = 12,657,322,886.82/92,298.20
  6. Step 6: Final answer
    x = 137,135.10

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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.