Home / 120,647.12-180,987.32-41,740.24

Finding the Fourth Proportional to 120,647.12, 180,987.32 and 41,740.24

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Solution

The fourth proportional to 120,647.12, 180,987.32 and 41,740.24 is: 62,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,647.12 : 180,987.32 = 41,740.24 : x
  2. Step 2: Convert to fraction form
    120,647.12/180,987.32 = 41,740.24/x
  3. Step 3: Cross multiply
    120,647.12x = 180,987.32 × 41,740.24
  4. Step 4: Simplify right side
    120,647.12x = 7,554,454,173.76
  5. Step 5: Solve for x
    x = 7,554,454,173.76/120,647.12
  6. Step 6: Final answer
    x = 62,616.12

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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.