Home / 123,269,276.91-170,111,767.94-66,754,121.40

Finding the Fourth Proportional to 123,269,276.91, 170,111,767.94 and 66,754,121.40

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Solution

The fourth proportional to 123,269,276.91, 170,111,767.94 and 66,754,121.40 is: 92,120,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,269,276.91 : 170,111,767.94 = 66,754,121.40 : x
  2. Step 2: Convert to fraction form
    123,269,276.91/170,111,767.94 = 66,754,121.40/x
  3. Step 3: Cross multiply
    123,269,276.91x = 170,111,767.94 × 66,754,121.40
  4. Step 4: Simplify right side
    123,269,276.91x = 11,355,661,608,635,388
  5. Step 5: Solve for x
    x = 11,355,661,608,635,388/123,269,276.91
  6. Step 6: Final answer
    x = 92,120,777.32

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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.