Home / 101,630.20-152,445.30-31,516.60

Finding the Fourth Proportional to 101,630.20, 152,445.30 and 31,516.60

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Solution

The fourth proportional to 101,630.20, 152,445.30 and 31,516.60 is: 47,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,630.20 : 152,445.30 = 31,516.60 : x
  2. Step 2: Convert to fraction form
    101,630.20/152,445.30 = 31,516.60/x
  3. Step 3: Cross multiply
    101,630.20x = 152,445.30 × 31,516.60
  4. Step 4: Simplify right side
    101,630.20x = 4,804,557,541.98
  5. Step 5: Solve for x
    x = 4,804,557,541.98/101,630.20
  6. Step 6: Final answer
    x = 47,274.90

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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.