Home / 120,325.67-180,399.05-72,929.13

Finding the Fourth Proportional to 120,325.67, 180,399.05 and 72,929.13

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Solution

The fourth proportional to 120,325.67, 180,399.05 and 72,929.13 is: 109,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,325.67 : 180,399.05 = 72,929.13 : x
  2. Step 2: Convert to fraction form
    120,325.67/180,399.05 = 72,929.13/x
  3. Step 3: Cross multiply
    120,325.67x = 180,399.05 × 72,929.13
  4. Step 4: Simplify right side
    120,325.67x = 13,156,345,769.33
  5. Step 5: Solve for x
    x = 13,156,345,769.33/120,325.67
  6. Step 6: Final answer
    x = 109,339.48

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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.