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Finding the Fourth Proportional to 207,656.67, 286,566.38 and 112,163.45

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Solution

The fourth proportional to 207,656.67, 286,566.38 and 112,163.45 is: 154,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,656.67 : 286,566.38 = 112,163.45 : x
  2. Step 2: Convert to fraction form
    207,656.67/286,566.38 = 112,163.45/x
  3. Step 3: Cross multiply
    207,656.67x = 286,566.38 × 112,163.45
  4. Step 4: Simplify right side
    207,656.67x = 32,142,272,682.39
  5. Step 5: Solve for x
    x = 32,142,272,682.39/207,656.67
  6. Step 6: Final answer
    x = 154,785.65

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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.