Home / 162,212.10-243,512.55-91,191.30

Finding the Fourth Proportional to 162,212.10, 243,512.55 and 91,191.30

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Solution

The fourth proportional to 162,212.10, 243,512.55 and 91,191.30 is: 136,896.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,212.10 : 243,512.55 = 91,191.30 : x
  2. Step 2: Convert to fraction form
    162,212.10/243,512.55 = 91,191.30/x
  3. Step 3: Cross multiply
    162,212.10x = 243,512.55 × 91,191.30
  4. Step 4: Simplify right side
    162,212.10x = 22,206,226,000.82
  5. Step 5: Solve for x
    x = 22,206,226,000.82/162,212.10
  6. Step 6: Final answer
    x = 136,896.24

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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.