Home / 120,275.36-180,363.60-36,005.76

Finding the Fourth Proportional to 120,275.36, 180,363.60 and 36,005.76

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Solution

The fourth proportional to 120,275.36, 180,363.60 and 36,005.76 is: 53,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,275.36 : 180,363.60 = 36,005.76 : x
  2. Step 2: Convert to fraction form
    120,275.36/180,363.60 = 36,005.76/x
  3. Step 3: Cross multiply
    120,275.36x = 180,363.60 × 36,005.76
  4. Step 4: Simplify right side
    120,275.36x = 6,494,128,494.34
  5. Step 5: Solve for x
    x = 6,494,128,494.34/120,275.36
  6. Step 6: Final answer
    x = 53,993.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.