Home / 152,131.20-209,871.21-98,433.72

Finding the Fourth Proportional to 152,131.20, 209,871.21 and 98,433.72

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Solution

The fourth proportional to 152,131.20, 209,871.21 and 98,433.72 is: 135,793.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,131.20 : 209,871.21 = 98,433.72 : x
  2. Step 2: Convert to fraction form
    152,131.20/209,871.21 = 98,433.72/x
  3. Step 3: Cross multiply
    152,131.20x = 209,871.21 × 98,433.72
  4. Step 4: Simplify right side
    152,131.20x = 20,658,403,921.20
  5. Step 5: Solve for x
    x = 20,658,403,921.20/152,131.20
  6. Step 6: Final answer
    x = 135,793.34

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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.