Home / 100,639.45-151,000.18-50,733.93

Finding the Fourth Proportional to 100,639.45, 151,000.18 and 50,733.93

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Solution

The fourth proportional to 100,639.45, 151,000.18 and 50,733.93 is: 76,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,639.45 : 151,000.18 = 50,733.93 : x
  2. Step 2: Convert to fraction form
    100,639.45/151,000.18 = 50,733.93/x
  3. Step 3: Cross multiply
    100,639.45x = 151,000.18 × 50,733.93
  4. Step 4: Simplify right side
    100,639.45x = 7,660,832,562.11
  5. Step 5: Solve for x
    x = 7,660,832,562.11/100,639.45
  6. Step 6: Final answer
    x = 76,121.57

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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.