Home / 156,390.93-215,943.72-144,449.91

Finding the Fourth Proportional to 156,390.93, 215,943.72 and 144,449.91

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Solution

The fourth proportional to 156,390.93, 215,943.72 and 144,449.91 is: 199,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,390.93 : 215,943.72 = 144,449.91 : x
  2. Step 2: Convert to fraction form
    156,390.93/215,943.72 = 144,449.91/x
  3. Step 3: Cross multiply
    156,390.93x = 215,943.72 × 144,449.91
  4. Step 4: Simplify right side
    156,390.93x = 31,193,050,919.07
  5. Step 5: Solve for x
    x = 31,193,050,919.07/156,390.93
  6. Step 6: Final answer
    x = 199,455.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.