Home / 470,517.04-705,787.08-138,103.60

Finding the Fourth Proportional to 470,517.04, 705,787.08 and 138,103.60

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Solution

The fourth proportional to 470,517.04, 705,787.08 and 138,103.60 is: 207,158.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,517.04 : 705,787.08 = 138,103.60 : x
  2. Step 2: Convert to fraction form
    470,517.04/705,787.08 = 138,103.60/x
  3. Step 3: Cross multiply
    470,517.04x = 705,787.08 × 138,103.60
  4. Step 4: Simplify right side
    470,517.04x = 97,471,736,581.49
  5. Step 5: Solve for x
    x = 97,471,736,581.49/470,517.04
  6. Step 6: Final answer
    x = 207,158.78

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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.