Home / 239,705.35-330,812.05-137,766.37

Finding the Fourth Proportional to 239,705.35, 330,812.05 and 137,766.37

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Solution

The fourth proportional to 239,705.35, 330,812.05 and 137,766.37 is: 190,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,705.35 : 330,812.05 = 137,766.37 : x
  2. Step 2: Convert to fraction form
    239,705.35/330,812.05 = 137,766.37/x
  3. Step 3: Cross multiply
    239,705.35x = 330,812.05 × 137,766.37
  4. Step 4: Simplify right side
    239,705.35x = 45,574,775,280.76
  5. Step 5: Solve for x
    x = 45,574,775,280.76/239,705.35
  6. Step 6: Final answer
    x = 190,128.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.