Home / 208,424.55-287,631.23-127,896.58

Finding the Fourth Proportional to 208,424.55, 287,631.23 and 127,896.58

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Solution

The fourth proportional to 208,424.55, 287,631.23 and 127,896.58 is: 176,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,424.55 : 287,631.23 = 127,896.58 : x
  2. Step 2: Convert to fraction form
    208,424.55/287,631.23 = 127,896.58/x
  3. Step 3: Cross multiply
    208,424.55x = 287,631.23 × 127,896.58
  4. Step 4: Simplify right side
    208,424.55x = 36,787,050,618.19
  5. Step 5: Solve for x
    x = 36,787,050,618.19/208,424.55
  6. Step 6: Final answer
    x = 176,500.56

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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.