Home / 197,140.20-295,710.30-72,455.40

Finding the Fourth Proportional to 197,140.20, 295,710.30 and 72,455.40

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Solution

The fourth proportional to 197,140.20, 295,710.30 and 72,455.40 is: 108,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,140.20 : 295,710.30 = 72,455.40 : x
  2. Step 2: Convert to fraction form
    197,140.20/295,710.30 = 72,455.40/x
  3. Step 3: Cross multiply
    197,140.20x = 295,710.30 × 72,455.40
  4. Step 4: Simplify right side
    197,140.20x = 21,425,808,070.62
  5. Step 5: Solve for x
    x = 21,425,808,070.62/197,140.20
  6. Step 6: Final answer
    x = 108,683.10

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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.