Home / 128,246.52-192,373.02-60,762.72

Finding the Fourth Proportional to 128,246.52, 192,373.02 and 60,762.72

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Solution

The fourth proportional to 128,246.52, 192,373.02 and 60,762.72 is: 91,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,246.52 : 192,373.02 = 60,762.72 : x
  2. Step 2: Convert to fraction form
    128,246.52/192,373.02 = 60,762.72/x
  3. Step 3: Cross multiply
    128,246.52x = 192,373.02 × 60,762.72
  4. Step 4: Simplify right side
    128,246.52x = 11,689,107,949.81
  5. Step 5: Solve for x
    x = 11,689,107,949.81/128,246.52
  6. Step 6: Final answer
    x = 91,145.62

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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.