Home / 208,299.45-287,451.81-112,803.96

Finding the Fourth Proportional to 208,299.45, 287,451.81 and 112,803.96

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Solution

The fourth proportional to 208,299.45, 287,451.81 and 112,803.96 is: 155,668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,299.45 : 287,451.81 = 112,803.96 : x
  2. Step 2: Convert to fraction form
    208,299.45/287,451.81 = 112,803.96/x
  3. Step 3: Cross multiply
    208,299.45x = 287,451.81 × 112,803.96
  4. Step 4: Simplify right side
    208,299.45x = 32,425,702,477.17
  5. Step 5: Solve for x
    x = 32,425,702,477.17/208,299.45
  6. Step 6: Final answer
    x = 155,668.69

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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.