Home / 89,107.58-133,686.14-72,426.30

Finding the Fourth Proportional to 89,107.58, 133,686.14 and 72,426.30

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Solution

The fourth proportional to 89,107.58, 133,686.14 and 72,426.30 is: 108,659.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,107.58 : 133,686.14 = 72,426.30 : x
  2. Step 2: Convert to fraction form
    89,107.58/133,686.14 = 72,426.30/x
  3. Step 3: Cross multiply
    89,107.58x = 133,686.14 × 72,426.30
  4. Step 4: Simplify right side
    89,107.58x = 9,682,392,119.35
  5. Step 5: Solve for x
    x = 9,682,392,119.35/89,107.58
  6. Step 6: Final answer
    x = 108,659.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.