Home / 107,691.18-148,588.44-90,528.81

Finding the Fourth Proportional to 107,691.18, 148,588.44 and 90,528.81

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Solution

The fourth proportional to 107,691.18, 148,588.44 and 90,528.81 is: 124,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,691.18 : 148,588.44 = 90,528.81 : x
  2. Step 2: Convert to fraction form
    107,691.18/148,588.44 = 90,528.81/x
  3. Step 3: Cross multiply
    107,691.18x = 148,588.44 × 90,528.81
  4. Step 4: Simplify right side
    107,691.18x = 13,451,534,652.96
  5. Step 5: Solve for x
    x = 13,451,534,652.96/107,691.18
  6. Step 6: Final answer
    x = 124,908.42

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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.