Home / 128,312.06-192,493.70-39,562.17

Finding the Fourth Proportional to 128,312.06, 192,493.70 and 39,562.17

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Solution

The fourth proportional to 128,312.06, 192,493.70 and 39,562.17 is: 59,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,312.06 : 192,493.70 = 39,562.17 : x
  2. Step 2: Convert to fraction form
    128,312.06/192,493.70 = 39,562.17/x
  3. Step 3: Cross multiply
    128,312.06x = 192,493.70 × 39,562.17
  4. Step 4: Simplify right side
    128,312.06x = 7,615,468,285.52
  5. Step 5: Solve for x
    x = 7,615,468,285.52/128,312.06
  6. Step 6: Final answer
    x = 59,351.15

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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.