Home / 210,102.82-315,156.96-69,861.44

Finding the Fourth Proportional to 210,102.82, 315,156.96 and 69,861.44

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Solution

The fourth proportional to 210,102.82, 315,156.96 and 69,861.44 is: 104,793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,102.82 : 315,156.96 = 69,861.44 : x
  2. Step 2: Convert to fraction form
    210,102.82/315,156.96 = 69,861.44/x
  3. Step 3: Cross multiply
    210,102.82x = 315,156.96 × 69,861.44
  4. Step 4: Simplify right side
    210,102.82x = 22,017,319,051.62
  5. Step 5: Solve for x
    x = 22,017,319,051.62/210,102.82
  6. Step 6: Final answer
    x = 104,793.07

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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.