Home / 137,793.36-190,140.17-77,370.60

Finding the Fourth Proportional to 137,793.36, 190,140.17 and 77,370.60

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Solution

The fourth proportional to 137,793.36, 190,140.17 and 77,370.60 is: 106,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,793.36 : 190,140.17 = 77,370.60 : x
  2. Step 2: Convert to fraction form
    137,793.36/190,140.17 = 77,370.60/x
  3. Step 3: Cross multiply
    137,793.36x = 190,140.17 × 77,370.60
  4. Step 4: Simplify right side
    137,793.36x = 14,711,258,650.15
  5. Step 5: Solve for x
    x = 14,711,258,650.15/137,793.36
  6. Step 6: Final answer
    x = 106,763.19

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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.