Home / 128,215.50-192,300.93-34,699.38

Finding the Fourth Proportional to 128,215.50, 192,300.93 and 34,699.38

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Solution

The fourth proportional to 128,215.50, 192,300.93 and 34,699.38 is: 52,043.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,215.50 : 192,300.93 = 34,699.38 : x
  2. Step 2: Convert to fraction form
    128,215.50/192,300.93 = 34,699.38/x
  3. Step 3: Cross multiply
    128,215.50x = 192,300.93 × 34,699.38
  4. Step 4: Simplify right side
    128,215.50x = 6,672,723,044.42
  5. Step 5: Solve for x
    x = 6,672,723,044.42/128,215.50
  6. Step 6: Final answer
    x = 52,043.03

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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.