Home / 120,733.36-166,725.49-77,788.24

Finding the Fourth Proportional to 120,733.36, 166,725.49 and 77,788.24

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Solution

The fourth proportional to 120,733.36, 166,725.49 and 77,788.24 is: 107,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,733.36 : 166,725.49 = 77,788.24 : x
  2. Step 2: Convert to fraction form
    120,733.36/166,725.49 = 77,788.24/x
  3. Step 3: Cross multiply
    120,733.36x = 166,725.49 × 77,788.24
  4. Step 4: Simplify right side
    120,733.36x = 12,969,282,430.24
  5. Step 5: Solve for x
    x = 12,969,282,430.24/120,733.36
  6. Step 6: Final answer
    x = 107,420.87

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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.