Home / 465,442.12-698,149.23-128,503.36

Finding the Fourth Proportional to 465,442.12, 698,149.23 and 128,503.36

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Solution

The fourth proportional to 465,442.12, 698,149.23 and 128,503.36 is: 192,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,442.12 : 698,149.23 = 128,503.36 : x
  2. Step 2: Convert to fraction form
    465,442.12/698,149.23 = 128,503.36/x
  3. Step 3: Cross multiply
    465,442.12x = 698,149.23 × 128,503.36
  4. Step 4: Simplify right side
    465,442.12x = 89,714,521,836.41
  5. Step 5: Solve for x
    x = 89,714,521,836.41/465,442.12
  6. Step 6: Final answer
    x = 192,751.19

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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.