Home / 109,023.75-150,501.38-76,787.37

Finding the Fourth Proportional to 109,023.75, 150,501.38 and 76,787.37

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Solution

The fourth proportional to 109,023.75, 150,501.38 and 76,787.37 is: 106,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,023.75 : 150,501.38 = 76,787.37 : x
  2. Step 2: Convert to fraction form
    109,023.75/150,501.38 = 76,787.37/x
  3. Step 3: Cross multiply
    109,023.75x = 150,501.38 × 76,787.37
  4. Step 4: Simplify right side
    109,023.75x = 11,556,604,767.63
  5. Step 5: Solve for x
    x = 11,556,604,767.63/109,023.75
  6. Step 6: Final answer
    x = 106,000.80

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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.