Home / 99,935.20-137,847.14-76,009.42

Finding the Fourth Proportional to 99,935.20, 137,847.14 and 76,009.42

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Solution

The fourth proportional to 99,935.20, 137,847.14 and 76,009.42 is: 104,844.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,935.20 : 137,847.14 = 76,009.42 : x
  2. Step 2: Convert to fraction form
    99,935.20/137,847.14 = 76,009.42/x
  3. Step 3: Cross multiply
    99,935.20x = 137,847.14 × 76,009.42
  4. Step 4: Simplify right side
    99,935.20x = 10,477,681,160.06
  5. Step 5: Solve for x
    x = 10,477,681,160.06/99,935.20
  6. Step 6: Final answer
    x = 104,844.75

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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.