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Finding the Fourth Proportional to 101,643.30, 152,260.83 and 57,203.46

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Solution

The fourth proportional to 101,643.30, 152,260.83 and 57,203.46 is: 85,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,643.30 : 152,260.83 = 57,203.46 : x
  2. Step 2: Convert to fraction form
    101,643.30/152,260.83 = 57,203.46/x
  3. Step 3: Cross multiply
    101,643.30x = 152,260.83 × 57,203.46
  4. Step 4: Simplify right side
    101,643.30x = 8,709,846,298.47
  5. Step 5: Solve for x
    x = 8,709,846,298.47/101,643.30
  6. Step 6: Final answer
    x = 85,690.31

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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.