Home / 120,239.92-165,997.26-90,014.32

Finding the Fourth Proportional to 120,239.92, 165,997.26 and 90,014.32

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Solution

The fourth proportional to 120,239.92, 165,997.26 and 90,014.32 is: 124,269.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,239.92 : 165,997.26 = 90,014.32 : x
  2. Step 2: Convert to fraction form
    120,239.92/165,997.26 = 90,014.32/x
  3. Step 3: Cross multiply
    120,239.92x = 165,997.26 × 90,014.32
  4. Step 4: Simplify right side
    120,239.92x = 14,942,130,480.76
  5. Step 5: Solve for x
    x = 14,942,130,480.76/120,239.92
  6. Step 6: Final answer
    x = 124,269.30

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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.