Home / 140,904.10-211,384.95-47,419.30

Finding the Fourth Proportional to 140,904.10, 211,384.95 and 47,419.30

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Solution

The fourth proportional to 140,904.10, 211,384.95 and 47,419.30 is: 71,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,904.10 : 211,384.95 = 47,419.30 : x
  2. Step 2: Convert to fraction form
    140,904.10/211,384.95 = 47,419.30/x
  3. Step 3: Cross multiply
    140,904.10x = 211,384.95 × 47,419.30
  4. Step 4: Simplify right side
    140,904.10x = 10,023,726,359.54
  5. Step 5: Solve for x
    x = 10,023,726,359.54/140,904.10
  6. Step 6: Final answer
    x = 71,138.64

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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.