Home / 196,870.60-295,305.90-72,195.40

Finding the Fourth Proportional to 196,870.60, 295,305.90 and 72,195.40

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Solution

The fourth proportional to 196,870.60, 295,305.90 and 72,195.40 is: 108,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,870.60 : 295,305.90 = 72,195.40 : x
  2. Step 2: Convert to fraction form
    196,870.60/295,305.90 = 72,195.40/x
  3. Step 3: Cross multiply
    196,870.60x = 295,305.90 × 72,195.40
  4. Step 4: Simplify right side
    196,870.60x = 21,319,727,572.86
  5. Step 5: Solve for x
    x = 21,319,727,572.86/196,870.60
  6. Step 6: Final answer
    x = 108,293.10

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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.