Home / 200,577.72-276,827.75-128,011.92

Finding the Fourth Proportional to 200,577.72, 276,827.75 and 128,011.92

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Solution

The fourth proportional to 200,577.72, 276,827.75 and 128,011.92 is: 176,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,577.72 : 276,827.75 = 128,011.92 : x
  2. Step 2: Convert to fraction form
    200,577.72/276,827.75 = 128,011.92/x
  3. Step 3: Cross multiply
    200,577.72x = 276,827.75 × 128,011.92
  4. Step 4: Simplify right side
    200,577.72x = 35,437,251,146.72
  5. Step 5: Solve for x
    x = 35,437,251,146.72/200,577.72
  6. Step 6: Final answer
    x = 176,675.91

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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.