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Finding the Fourth Proportional to 143,133.47, 214,700.21 and 54,365.98

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Solution

The fourth proportional to 143,133.47, 214,700.21 and 54,365.98 is: 81,548.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,133.47 : 214,700.21 = 54,365.98 : x
  2. Step 2: Convert to fraction form
    143,133.47/214,700.21 = 54,365.98/x
  3. Step 3: Cross multiply
    143,133.47x = 214,700.21 × 54,365.98
  4. Step 4: Simplify right side
    143,133.47x = 11,672,387,322.86
  5. Step 5: Solve for x
    x = 11,672,387,322.86/143,133.47
  6. Step 6: Final answer
    x = 81,548.97

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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.