Home / 208,157.12-287,263.78-127,569.07

Finding the Fourth Proportional to 208,157.12, 287,263.78 and 127,569.07

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Solution

The fourth proportional to 208,157.12, 287,263.78 and 127,569.07 is: 176,049.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,157.12 : 287,263.78 = 127,569.07 : x
  2. Step 2: Convert to fraction form
    208,157.12/287,263.78 = 127,569.07/x
  3. Step 3: Cross multiply
    208,157.12x = 287,263.78 × 127,569.07
  4. Step 4: Simplify right side
    208,157.12x = 36,645,973,658.52
  5. Step 5: Solve for x
    x = 36,645,973,658.52/208,157.12
  6. Step 6: Final answer
    x = 176,049.58

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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.