Home / 120,434.77-180,652.16-50,275.81

Finding the Fourth Proportional to 120,434.77, 180,652.16 and 50,275.81

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Solution

The fourth proportional to 120,434.77, 180,652.16 and 50,275.81 is: 75,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,434.77 : 180,652.16 = 50,275.81 : x
  2. Step 2: Convert to fraction form
    120,434.77/180,652.16 = 50,275.81/x
  3. Step 3: Cross multiply
    120,434.77x = 180,652.16 × 50,275.81
  4. Step 4: Simplify right side
    120,434.77x = 9,082,433,672.25
  5. Step 5: Solve for x
    x = 9,082,433,672.25/120,434.77
  6. Step 6: Final answer
    x = 75,413.72

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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.