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Finding the Fourth Proportional to 207,672.45, 286,587.81 and 112,179.12

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Solution

The fourth proportional to 207,672.45, 286,587.81 and 112,179.12 is: 154,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,672.45 : 286,587.81 = 112,179.12 : x
  2. Step 2: Convert to fraction form
    207,672.45/286,587.81 = 112,179.12/x
  3. Step 3: Cross multiply
    207,672.45x = 286,587.81 × 112,179.12
  4. Step 4: Simplify right side
    207,672.45x = 32,149,168,328.53
  5. Step 5: Solve for x
    x = 32,149,168,328.53/207,672.45
  6. Step 6: Final answer
    x = 154,807.09

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