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Finding the Fourth Proportional to 140,262.88, 210,477.60 and 56,062.88

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Solution

The fourth proportional to 140,262.88, 210,477.60 and 56,062.88 is: 84,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,262.88 : 210,477.60 = 56,062.88 : x
  2. Step 2: Convert to fraction form
    140,262.88/210,477.60 = 56,062.88/x
  3. Step 3: Cross multiply
    140,262.88x = 210,477.60 × 56,062.88
  4. Step 4: Simplify right side
    140,262.88x = 11,799,980,431.49
  5. Step 5: Solve for x
    x = 11,799,980,431.49/140,262.88
  6. Step 6: Final answer
    x = 84,127.61

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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.