Home / 465,140.28-697,585.87-128,100.82

Finding the Fourth Proportional to 465,140.28, 697,585.87 and 128,100.82

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Solution

The fourth proportional to 465,140.28, 697,585.87 and 128,100.82 is: 192,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,140.28 : 697,585.87 = 128,100.82 : x
  2. Step 2: Convert to fraction form
    465,140.28/697,585.87 = 128,100.82/x
  3. Step 3: Cross multiply
    465,140.28x = 697,585.87 × 128,100.82
  4. Step 4: Simplify right side
    465,140.28x = 89,361,321,967.41
  5. Step 5: Solve for x
    x = 89,361,321,967.41/465,140.28
  6. Step 6: Final answer
    x = 192,116.93

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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.