Home / 140,879.10-211,513.05-111,330.30

Finding the Fourth Proportional to 140,879.10, 211,513.05 and 111,330.30

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Solution

The fourth proportional to 140,879.10, 211,513.05 and 111,330.30 is: 167,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,879.10 : 211,513.05 = 111,330.30 : x
  2. Step 2: Convert to fraction form
    140,879.10/211,513.05 = 111,330.30/x
  3. Step 3: Cross multiply
    140,879.10x = 211,513.05 × 111,330.30
  4. Step 4: Simplify right side
    140,879.10x = 23,547,811,310.42
  5. Step 5: Solve for x
    x = 23,547,811,310.42/140,879.10
  6. Step 6: Final answer
    x = 167,149.08

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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.