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Finding the Fourth Proportional to 143,191.91, 214,814.30 and 47,134.55

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Solution

The fourth proportional to 143,191.91, 214,814.30 and 47,134.55 is: 70,710.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,191.91 : 214,814.30 = 47,134.55 : x
  2. Step 2: Convert to fraction form
    143,191.91/214,814.30 = 47,134.55/x
  3. Step 3: Cross multiply
    143,191.91x = 214,814.30 × 47,134.55
  4. Step 4: Simplify right side
    143,191.91x = 10,125,174,054.32
  5. Step 5: Solve for x
    x = 10,125,174,054.32/143,191.91
  6. Step 6: Final answer
    x = 70,710.52

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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.