Home / 120,720.69-166,594.50-67,005.63

Finding the Fourth Proportional to 120,720.69, 166,594.50 and 67,005.63

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Solution

The fourth proportional to 120,720.69, 166,594.50 and 67,005.63 is: 92,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,720.69 : 166,594.50 = 67,005.63 : x
  2. Step 2: Convert to fraction form
    120,720.69/166,594.50 = 67,005.63/x
  3. Step 3: Cross multiply
    120,720.69x = 166,594.50 × 67,005.63
  4. Step 4: Simplify right side
    120,720.69x = 11,162,769,427.04
  5. Step 5: Solve for x
    x = 11,162,769,427.04/120,720.69
  6. Step 6: Final answer
    x = 92,467.74

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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.