Home / 123,976.16-171,086.08-67,387.36

Finding the Fourth Proportional to 123,976.16, 171,086.08 and 67,387.36

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Solution

The fourth proportional to 123,976.16, 171,086.08 and 67,387.36 is: 92,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,976.16 : 171,086.08 = 67,387.36 : x
  2. Step 2: Convert to fraction form
    123,976.16/171,086.08 = 67,387.36/x
  3. Step 3: Cross multiply
    123,976.16x = 171,086.08 × 67,387.36
  4. Step 4: Simplify right side
    123,976.16x = 11,529,039,263.95
  5. Step 5: Solve for x
    x = 11,529,039,263.95/123,976.16
  6. Step 6: Final answer
    x = 92,994.00

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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.