Home / 154,397.40-231,618.22-47,790.72

Finding the Fourth Proportional to 154,397.40, 231,618.22 and 47,790.72

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Solution

The fourth proportional to 154,397.40, 231,618.22 and 47,790.72 is: 71,692.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,397.40 : 231,618.22 = 47,790.72 : x
  2. Step 2: Convert to fraction form
    154,397.40/231,618.22 = 47,790.72/x
  3. Step 3: Cross multiply
    154,397.40x = 231,618.22 × 47,790.72
  4. Step 4: Simplify right side
    154,397.40x = 11,069,201,498.92
  5. Step 5: Solve for x
    x = 11,069,201,498.92/154,397.40
  6. Step 6: Final answer
    x = 71,692.93

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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.