Home / 128,534.76-192,754.46-44,271.40

Finding the Fourth Proportional to 128,534.76, 192,754.46 and 44,271.40

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Solution

The fourth proportional to 128,534.76, 192,754.46 and 44,271.40 is: 66,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,534.76 : 192,754.46 = 44,271.40 : x
  2. Step 2: Convert to fraction form
    128,534.76/192,754.46 = 44,271.40/x
  3. Step 3: Cross multiply
    128,534.76x = 192,754.46 × 44,271.40
  4. Step 4: Simplify right side
    128,534.76x = 8,533,509,800.44
  5. Step 5: Solve for x
    x = 8,533,509,800.44/128,534.76
  6. Step 6: Final answer
    x = 66,390.68

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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.