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Finding the Fourth Proportional to 143,146.55, 214,703.42 and 37,973.72

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Solution

The fourth proportional to 143,146.55, 214,703.42 and 37,973.72 is: 56,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,146.55 : 214,703.42 = 37,973.72 : x
  2. Step 2: Convert to fraction form
    143,146.55/214,703.42 = 37,973.72/x
  3. Step 3: Cross multiply
    143,146.55x = 214,703.42 × 37,973.72
  4. Step 4: Simplify right side
    143,146.55x = 8,153,086,290.74
  5. Step 5: Solve for x
    x = 8,153,086,290.74/143,146.55
  6. Step 6: Final answer
    x = 56,956.22

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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.