Home / 128,381.24-192,666.48-60,913.54

Finding the Fourth Proportional to 128,381.24, 192,666.48 and 60,913.54

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Solution

The fourth proportional to 128,381.24, 192,666.48 and 60,913.54 is: 91,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,381.24 : 192,666.48 = 60,913.54 : x
  2. Step 2: Convert to fraction form
    128,381.24/192,666.48 = 60,913.54/x
  3. Step 3: Cross multiply
    128,381.24x = 192,666.48 × 60,913.54
  4. Step 4: Simplify right side
    128,381.24x = 11,735,997,336.14
  5. Step 5: Solve for x
    x = 11,735,997,336.14/128,381.24
  6. Step 6: Final answer
    x = 91,415.20

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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.