Home / 131,340.10-197,021.08-52,411.28

Finding the Fourth Proportional to 131,340.10, 197,021.08 and 52,411.28

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Solution

The fourth proportional to 131,340.10, 197,021.08 and 52,411.28 is: 78,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,340.10 : 197,021.08 = 52,411.28 : x
  2. Step 2: Convert to fraction form
    131,340.10/197,021.08 = 52,411.28/x
  3. Step 3: Cross multiply
    131,340.10x = 197,021.08 × 52,411.28
  4. Step 4: Simplify right side
    131,340.10x = 10,326,126,989.78
  5. Step 5: Solve for x
    x = 10,326,126,989.78/131,340.10
  6. Step 6: Final answer
    x = 78,621.28

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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.