Home / 143,339.75-215,001.12-43,500.77

Finding the Fourth Proportional to 143,339.75, 215,001.12 and 43,500.77

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Solution

The fourth proportional to 143,339.75, 215,001.12 and 43,500.77 is: 65,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,339.75 : 215,001.12 = 43,500.77 : x
  2. Step 2: Convert to fraction form
    143,339.75/215,001.12 = 43,500.77/x
  3. Step 3: Cross multiply
    143,339.75x = 215,001.12 × 43,500.77
  4. Step 4: Simplify right side
    143,339.75x = 9,352,714,270.86
  5. Step 5: Solve for x
    x = 9,352,714,270.86/143,339.75
  6. Step 6: Final answer
    x = 65,248.57

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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.