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Finding the Fourth Proportional to 207,893.16, 286,891.93 and 112,399.86

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Solution

The fourth proportional to 207,893.16, 286,891.93 and 112,399.86 is: 155,111.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,893.16 : 286,891.93 = 112,399.86 : x
  2. Step 2: Convert to fraction form
    207,893.16/286,891.93 = 112,399.86/x
  3. Step 3: Cross multiply
    207,893.16x = 286,891.93 × 112,399.86
  4. Step 4: Simplify right side
    207,893.16x = 32,246,611,613.67
  5. Step 5: Solve for x
    x = 32,246,611,613.67/207,893.16
  6. Step 6: Final answer
    x = 155,111.46

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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.