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Finding the Fourth Proportional to 103,804.61, 143,250.36 and 56,057.95

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Solution

The fourth proportional to 103,804.61, 143,250.36 and 56,057.95 is: 77,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,804.61 : 143,250.36 = 56,057.95 : x
  2. Step 2: Convert to fraction form
    103,804.61/143,250.36 = 56,057.95/x
  3. Step 3: Cross multiply
    103,804.61x = 143,250.36 × 56,057.95
  4. Step 4: Simplify right side
    103,804.61x = 8,030,321,487.21
  5. Step 5: Solve for x
    x = 8,030,321,487.21/103,804.61
  6. Step 6: Final answer
    x = 77,359.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.