Home / 142,364.04-196,477.02-81,936.96

Finding the Fourth Proportional to 142,364.04, 196,477.02 and 81,936.96

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Solution

The fourth proportional to 142,364.04, 196,477.02 and 81,936.96 is: 113,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,364.04 : 196,477.02 = 81,936.96 : x
  2. Step 2: Convert to fraction form
    142,364.04/196,477.02 = 81,936.96/x
  3. Step 3: Cross multiply
    142,364.04x = 196,477.02 × 81,936.96
  4. Step 4: Simplify right side
    142,364.04x = 16,098,729,728.66
  5. Step 5: Solve for x
    x = 16,098,729,728.66/142,364.04
  6. Step 6: Final answer
    x = 113,081.43

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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.