Home / 131,621.80-197,259.90-52,671.40

Finding the Fourth Proportional to 131,621.80, 197,259.90 and 52,671.40

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Solution

The fourth proportional to 131,621.80, 197,259.90 and 52,671.40 is: 78,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,621.80 : 197,259.90 = 52,671.40 : x
  2. Step 2: Convert to fraction form
    131,621.80/197,259.90 = 52,671.40/x
  3. Step 3: Cross multiply
    131,621.80x = 197,259.90 × 52,671.40
  4. Step 4: Simplify right side
    131,621.80x = 10,389,955,096.86
  5. Step 5: Solve for x
    x = 10,389,955,096.86/131,621.80
  6. Step 6: Final answer
    x = 78,937.95

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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.