Home / 197,145.90-295,718.85-72,470.70

Finding the Fourth Proportional to 197,145.90, 295,718.85 and 72,470.70

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Solution

The fourth proportional to 197,145.90, 295,718.85 and 72,470.70 is: 108,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,145.90 : 295,718.85 = 72,470.70 : x
  2. Step 2: Convert to fraction form
    197,145.90/295,718.85 = 72,470.70/x
  3. Step 3: Cross multiply
    197,145.90x = 295,718.85 × 72,470.70
  4. Step 4: Simplify right side
    197,145.90x = 21,430,952,062.70
  5. Step 5: Solve for x
    x = 21,430,952,062.70/197,145.90
  6. Step 6: Final answer
    x = 108,706.05

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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.