Home / 120,237.18-165,930.39-72,493.59

Finding the Fourth Proportional to 120,237.18, 165,930.39 and 72,493.59

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Solution

The fourth proportional to 120,237.18, 165,930.39 and 72,493.59 is: 100,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,237.18 : 165,930.39 = 72,493.59 : x
  2. Step 2: Convert to fraction form
    120,237.18/165,930.39 = 72,493.59/x
  3. Step 3: Cross multiply
    120,237.18x = 165,930.39 × 72,493.59
  4. Step 4: Simplify right side
    120,237.18x = 12,028,889,661.20
  5. Step 5: Solve for x
    x = 12,028,889,661.20/120,237.18
  6. Step 6: Final answer
    x = 100,043.01

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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.