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Finding the Fourth Proportional to 104,043, 143,578.31 and 56,295.30

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Solution

The fourth proportional to 104,043, 143,578.31 and 56,295.30 is: 77,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,043 : 143,578.31 = 56,295.30 : x
  2. Step 2: Convert to fraction form
    104,043/143,578.31 = 56,295.30/x
  3. Step 3: Cross multiply
    104,043x = 143,578.31 × 56,295.30
  4. Step 4: Simplify right side
    104,043x = 8,082,784,034.94
  5. Step 5: Solve for x
    x = 8,082,784,034.94/104,043
  6. Step 6: Final answer
    x = 77,686.96

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1.5x scale

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.