Home / 143,454.03-215,181.38-43,615.05

Finding the Fourth Proportional to 143,454.03, 215,181.38 and 43,615.05

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Solution

The fourth proportional to 143,454.03, 215,181.38 and 43,615.05 is: 65,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,454.03 : 215,181.38 = 43,615.05 : x
  2. Step 2: Convert to fraction form
    143,454.03/215,181.38 = 43,615.05/x
  3. Step 3: Cross multiply
    143,454.03x = 215,181.38 × 43,615.05
  4. Step 4: Simplify right side
    143,454.03x = 9,385,146,647.77
  5. Step 5: Solve for x
    x = 9,385,146,647.77/143,454.03
  6. Step 6: Final answer
    x = 65,422.68

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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.