Home / 92,312.20-138,176.70-72,483.40

Finding the Fourth Proportional to 92,312.20, 138,176.70 and 72,483.40

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Solution

The fourth proportional to 92,312.20, 138,176.70 and 72,483.40 is: 108,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,312.20 : 138,176.70 = 72,483.40 : x
  2. Step 2: Convert to fraction form
    92,312.20/138,176.70 = 72,483.40/x
  3. Step 3: Cross multiply
    92,312.20x = 138,176.70 × 72,483.40
  4. Step 4: Simplify right side
    92,312.20x = 10,015,517,016.78
  5. Step 5: Solve for x
    x = 10,015,517,016.78/92,312.20
  6. Step 6: Final answer
    x = 108,496.14

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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.