Home / 180,288.36-248,787.72-99,711.18

Finding the Fourth Proportional to 180,288.36, 248,787.72 and 99,711.18

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Solution

The fourth proportional to 180,288.36, 248,787.72 and 99,711.18 is: 137,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,288.36 : 248,787.72 = 99,711.18 : x
  2. Step 2: Convert to fraction form
    180,288.36/248,787.72 = 99,711.18/x
  3. Step 3: Cross multiply
    180,288.36x = 248,787.72 × 99,711.18
  4. Step 4: Simplify right side
    180,288.36x = 24,806,917,130.71
  5. Step 5: Solve for x
    x = 24,806,917,130.71/180,288.36
  6. Step 6: Final answer
    x = 137,595.78

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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.