Home / 140,930.10-211,423.95-47,445.30

Finding the Fourth Proportional to 140,930.10, 211,423.95 and 47,445.30

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Solution

The fourth proportional to 140,930.10, 211,423.95 and 47,445.30 is: 71,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,930.10 : 211,423.95 = 47,445.30 : x
  2. Step 2: Convert to fraction form
    140,930.10/211,423.95 = 47,445.30/x
  3. Step 3: Cross multiply
    140,930.10x = 211,423.95 × 47,445.30
  4. Step 4: Simplify right side
    140,930.10x = 10,031,072,734.94
  5. Step 5: Solve for x
    x = 10,031,072,734.94/140,930.10
  6. Step 6: Final answer
    x = 71,177.65

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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.