Home / 132,802.36-183,262.62-72,371.78

Finding the Fourth Proportional to 132,802.36, 183,262.62 and 72,371.78

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Solution

The fourth proportional to 132,802.36, 183,262.62 and 72,371.78 is: 99,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,802.36 : 183,262.62 = 72,371.78 : x
  2. Step 2: Convert to fraction form
    132,802.36/183,262.62 = 72,371.78/x
  3. Step 3: Cross multiply
    132,802.36x = 183,262.62 × 72,371.78
  4. Step 4: Simplify right side
    132,802.36x = 13,263,042,016.86
  5. Step 5: Solve for x
    x = 13,263,042,016.86/132,802.36
  6. Step 6: Final answer
    x = 99,870.53

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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.