Home / 211,472.08-291,830.88-120,856.16

Finding the Fourth Proportional to 211,472.08, 291,830.88 and 120,856.16

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Solution

The fourth proportional to 211,472.08, 291,830.88 and 120,856.16 is: 166,781.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,472.08 : 291,830.88 = 120,856.16 : x
  2. Step 2: Convert to fraction form
    211,472.08/291,830.88 = 120,856.16/x
  3. Step 3: Cross multiply
    211,472.08x = 291,830.88 × 120,856.16
  4. Step 4: Simplify right side
    211,472.08x = 35,269,560,255.80
  5. Step 5: Solve for x
    x = 35,269,560,255.80/211,472.08
  6. Step 6: Final answer
    x = 166,781.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.