Home / 92,450.57-138,007.06-81,240.50

Finding the Fourth Proportional to 92,450.57, 138,007.06 and 81,240.50

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Solution

The fourth proportional to 92,450.57, 138,007.06 and 81,240.50 is: 121,273.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,450.57 : 138,007.06 = 81,240.50 : x
  2. Step 2: Convert to fraction form
    92,450.57/138,007.06 = 81,240.50/x
  3. Step 3: Cross multiply
    92,450.57x = 138,007.06 × 81,240.50
  4. Step 4: Simplify right side
    92,450.57x = 11,211,762,699.85
  5. Step 5: Solve for x
    x = 11,211,762,699.85/92,450.57
  6. Step 6: Final answer
    x = 121,273.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.