Home / 120,728.08-181,126.68-58,433.68

Finding the Fourth Proportional to 120,728.08, 181,126.68 and 58,433.68

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Solution

The fourth proportional to 120,728.08, 181,126.68 and 58,433.68 is: 87,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,728.08 : 181,126.68 = 58,433.68 : x
  2. Step 2: Convert to fraction form
    120,728.08/181,126.68 = 58,433.68/x
  3. Step 3: Cross multiply
    120,728.08x = 181,126.68 × 58,433.68
  4. Step 4: Simplify right side
    120,728.08x = 10,583,898,458.58
  5. Step 5: Solve for x
    x = 10,583,898,458.58/120,728.08
  6. Step 6: Final answer
    x = 87,667.25

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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.