Home / 128,260.50-192,416.27-39,510.22

Finding the Fourth Proportional to 128,260.50, 192,416.27 and 39,510.22

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Solution

The fourth proportional to 128,260.50, 192,416.27 and 39,510.22 is: 59,273.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,260.50 : 192,416.27 = 39,510.22 : x
  2. Step 2: Convert to fraction form
    128,260.50/192,416.27 = 39,510.22/x
  3. Step 3: Cross multiply
    128,260.50x = 192,416.27 × 39,510.22
  4. Step 4: Simplify right side
    128,260.50x = 7,602,408,480.69
  5. Step 5: Solve for x
    x = 7,602,408,480.69/128,260.50
  6. Step 6: Final answer
    x = 59,273.19

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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.