Home / 140,038.50-209,608.20-73,383.60

Finding the Fourth Proportional to 140,038.50, 209,608.20 and 73,383.60

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Solution

The fourth proportional to 140,038.50, 209,608.20 and 73,383.60 is: 109,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,038.50 : 209,608.20 = 73,383.60 : x
  2. Step 2: Convert to fraction form
    140,038.50/209,608.20 = 73,383.60/x
  3. Step 3: Cross multiply
    140,038.50x = 209,608.20 × 73,383.60
  4. Step 4: Simplify right side
    140,038.50x = 15,381,804,305.52
  5. Step 5: Solve for x
    x = 15,381,804,305.52/140,038.50
  6. Step 6: Final answer
    x = 109,839.82

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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.