Home / 128,510.46-192,689.94-60,046.28

Finding the Fourth Proportional to 128,510.46, 192,689.94 and 60,046.28

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Solution

The fourth proportional to 128,510.46, 192,689.94 and 60,046.28 is: 90,034.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,510.46 : 192,689.94 = 60,046.28 : x
  2. Step 2: Convert to fraction form
    128,510.46/192,689.94 = 60,046.28/x
  3. Step 3: Cross multiply
    128,510.46x = 192,689.94 × 60,046.28
  4. Step 4: Simplify right side
    128,510.46x = 11,570,314,090.42
  5. Step 5: Solve for x
    x = 11,570,314,090.42/128,510.46
  6. Step 6: Final answer
    x = 90,034.03

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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.