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Finding the Fourth Proportional to 147,390.87, 221,133.06 and 52,618.98

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Solution

The fourth proportional to 147,390.87, 221,133.06 and 52,618.98 is: 78,945.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,390.87 : 221,133.06 = 52,618.98 : x
  2. Step 2: Convert to fraction form
    147,390.87/221,133.06 = 52,618.98/x
  3. Step 3: Cross multiply
    147,390.87x = 221,133.06 × 52,618.98
  4. Step 4: Simplify right side
    147,390.87x = 11,635,796,061.48
  5. Step 5: Solve for x
    x = 11,635,796,061.48/147,390.87
  6. Step 6: Final answer
    x = 78,945.16

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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.