Home / 127,280.87-175,637.31-73,569.36

Finding the Fourth Proportional to 127,280.87, 175,637.31 and 73,569.36

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Solution

The fourth proportional to 127,280.87, 175,637.31 and 73,569.36 is: 101,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,280.87 : 175,637.31 = 73,569.36 : x
  2. Step 2: Convert to fraction form
    127,280.87/175,637.31 = 73,569.36/x
  3. Step 3: Cross multiply
    127,280.87x = 175,637.31 × 73,569.36
  4. Step 4: Simplify right side
    127,280.87x = 12,921,524,488.82
  5. Step 5: Solve for x
    x = 12,921,524,488.82/127,280.87
  6. Step 6: Final answer
    x = 101,519.77

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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.