Home / 131,142.12-196,807.95-52,210.86

Finding the Fourth Proportional to 131,142.12, 196,807.95 and 52,210.86

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Solution

The fourth proportional to 131,142.12, 196,807.95 and 52,210.86 is: 78,354.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,142.12 : 196,807.95 = 52,210.86 : x
  2. Step 2: Convert to fraction form
    131,142.12/196,807.95 = 52,210.86/x
  3. Step 3: Cross multiply
    131,142.12x = 196,807.95 × 52,210.86
  4. Step 4: Simplify right side
    131,142.12x = 10,275,512,324.34
  5. Step 5: Solve for x
    x = 10,275,512,324.34/131,142.12
  6. Step 6: Final answer
    x = 78,354.02

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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.