Home / 128,975.31-193,441.05-58,838.22

Finding the Fourth Proportional to 128,975.31, 193,441.05 and 58,838.22

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Solution

The fourth proportional to 128,975.31, 193,441.05 and 58,838.22 is: 88,247.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,975.31 : 193,441.05 = 58,838.22 : x
  2. Step 2: Convert to fraction form
    128,975.31/193,441.05 = 58,838.22/x
  3. Step 3: Cross multiply
    128,975.31x = 193,441.05 × 58,838.22
  4. Step 4: Simplify right side
    128,975.31x = 11,381,727,056.93
  5. Step 5: Solve for x
    x = 11,381,727,056.93/128,975.31
  6. Step 6: Final answer
    x = 88,247.33

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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.