Home / 106,669.69-147,124.32-74,405.95

Finding the Fourth Proportional to 106,669.69, 147,124.32 and 74,405.95

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Solution

The fourth proportional to 106,669.69, 147,124.32 and 74,405.95 is: 102,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,669.69 : 147,124.32 = 74,405.95 : x
  2. Step 2: Convert to fraction form
    106,669.69/147,124.32 = 74,405.95/x
  3. Step 3: Cross multiply
    106,669.69x = 147,124.32 × 74,405.95
  4. Step 4: Simplify right side
    106,669.69x = 10,946,924,797.70
  5. Step 5: Solve for x
    x = 10,946,924,797.70/106,669.69
  6. Step 6: Final answer
    x = 102,624.51

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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.