Home / 104,121.04-143,687.12-56,374.40

Finding the Fourth Proportional to 104,121.04, 143,687.12 and 56,374.40

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Solution

The fourth proportional to 104,121.04, 143,687.12 and 56,374.40 is: 77,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,121.04 : 143,687.12 = 56,374.40 : x
  2. Step 2: Convert to fraction form
    104,121.04/143,687.12 = 56,374.40/x
  3. Step 3: Cross multiply
    104,121.04x = 143,687.12 × 56,374.40
  4. Step 4: Simplify right side
    104,121.04x = 8,100,275,177.73
  5. Step 5: Solve for x
    x = 8,100,275,177.73/104,121.04
  6. Step 6: Final answer
    x = 77,796.72

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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.