Home / 112,311.60-154,940.31-76,000.11

Finding the Fourth Proportional to 112,311.60, 154,940.31 and 76,000.11

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Solution

The fourth proportional to 112,311.60, 154,940.31 and 76,000.11 is: 104,846.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,311.60 : 154,940.31 = 76,000.11 : x
  2. Step 2: Convert to fraction form
    112,311.60/154,940.31 = 76,000.11/x
  3. Step 3: Cross multiply
    112,311.60x = 154,940.31 × 76,000.11
  4. Step 4: Simplify right side
    112,311.60x = 11,775,480,603.43
  5. Step 5: Solve for x
    x = 11,775,480,603.43/112,311.60
  6. Step 6: Final answer
    x = 104,846.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.