Home / 92,211.40-138,317.10-91,628.20

Finding the Fourth Proportional to 92,211.40, 138,317.10 and 91,628.20

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Solution

The fourth proportional to 92,211.40, 138,317.10 and 91,628.20 is: 137,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,211.40 : 138,317.10 = 91,628.20 : x
  2. Step 2: Convert to fraction form
    92,211.40/138,317.10 = 91,628.20/x
  3. Step 3: Cross multiply
    92,211.40x = 138,317.10 × 91,628.20
  4. Step 4: Simplify right side
    92,211.40x = 12,673,746,902.22
  5. Step 5: Solve for x
    x = 12,673,746,902.22/92,211.40
  6. Step 6: Final answer
    x = 137,442.30

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1.5x scale

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.