Home / 106,815.09-147,405.79-59,071.67

Finding the Fourth Proportional to 106,815.09, 147,405.79 and 59,071.67

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Solution

The fourth proportional to 106,815.09, 147,405.79 and 59,071.67 is: 81,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,815.09 : 147,405.79 = 59,071.67 : x
  2. Step 2: Convert to fraction form
    106,815.09/147,405.79 = 59,071.67/x
  3. Step 3: Cross multiply
    106,815.09x = 147,405.79 × 59,071.67
  4. Step 4: Simplify right side
    106,815.09x = 8,707,506,182.97
  5. Step 5: Solve for x
    x = 8,707,506,182.97/106,815.09
  6. Step 6: Final answer
    x = 81,519.44

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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.