Home / 146,819.80-220,302.60-83,688.40

Finding the Fourth Proportional to 146,819.80, 220,302.60 and 83,688.40

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Solution

The fourth proportional to 146,819.80, 220,302.60 and 83,688.40 is: 125,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,819.80 : 220,302.60 = 83,688.40 : x
  2. Step 2: Convert to fraction form
    146,819.80/220,302.60 = 83,688.40/x
  3. Step 3: Cross multiply
    146,819.80x = 220,302.60 × 83,688.40
  4. Step 4: Simplify right side
    146,819.80x = 18,436,772,109.84
  5. Step 5: Solve for x
    x = 18,436,772,109.84/146,819.80
  6. Step 6: Final answer
    x = 125,574.15

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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.