Home / 128,911.70-193,438.02-50,029.04

Finding the Fourth Proportional to 128,911.70, 193,438.02 and 50,029.04

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Solution

The fourth proportional to 128,911.70, 193,438.02 and 50,029.04 is: 75,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,911.70 : 193,438.02 = 50,029.04 : x
  2. Step 2: Convert to fraction form
    128,911.70/193,438.02 = 50,029.04/x
  3. Step 3: Cross multiply
    128,911.70x = 193,438.02 × 50,029.04
  4. Step 4: Simplify right side
    128,911.70x = 9,677,518,440.10
  5. Step 5: Solve for x
    x = 9,677,518,440.10/128,911.70
  6. Step 6: Final answer
    x = 75,070.91

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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.