Home / 211,002.50-316,581.52-111,158.66

Finding the Fourth Proportional to 211,002.50, 316,581.52 and 111,158.66

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Solution

The fourth proportional to 211,002.50, 316,581.52 and 111,158.66 is: 166,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,002.50 : 316,581.52 = 111,158.66 : x
  2. Step 2: Convert to fraction form
    211,002.50/316,581.52 = 111,158.66/x
  3. Step 3: Cross multiply
    211,002.50x = 316,581.52 × 111,158.66
  4. Step 4: Simplify right side
    211,002.50x = 35,190,777,543.96
  5. Step 5: Solve for x
    x = 35,190,777,543.96/211,002.50
  6. Step 6: Final answer
    x = 166,778.96

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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.