Home / 106,664.17-147,116.75-74,400.45

Finding the Fourth Proportional to 106,664.17, 147,116.75 and 74,400.45

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Solution

The fourth proportional to 106,664.17, 147,116.75 and 74,400.45 is: 102,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,664.17 : 147,116.75 = 74,400.45 : x
  2. Step 2: Convert to fraction form
    106,664.17/147,116.75 = 74,400.45/x
  3. Step 3: Cross multiply
    106,664.17x = 147,116.75 × 74,400.45
  4. Step 4: Simplify right side
    106,664.17x = 10,945,552,030.54
  5. Step 5: Solve for x
    x = 10,945,552,030.54/106,664.17
  6. Step 6: Final answer
    x = 102,616.95

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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.