Home / 102,900.55-154,151.09-75,833.74

Finding the Fourth Proportional to 102,900.55, 154,151.09 and 75,833.74

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Solution

The fourth proportional to 102,900.55, 154,151.09 and 75,833.74 is: 113,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,900.55 : 154,151.09 = 75,833.74 : x
  2. Step 2: Convert to fraction form
    102,900.55/154,151.09 = 75,833.74/x
  3. Step 3: Cross multiply
    102,900.55x = 154,151.09 × 75,833.74
  4. Step 4: Simplify right side
    102,900.55x = 11,689,853,123.86
  5. Step 5: Solve for x
    x = 11,689,853,123.86/102,900.55
  6. Step 6: Final answer
    x = 113,603.41

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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.