Home / 106,620.39-147,133.40-70,277.31

Finding the Fourth Proportional to 106,620.39, 147,133.40 and 70,277.31

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Solution

The fourth proportional to 106,620.39, 147,133.40 and 70,277.31 is: 96,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,620.39 : 147,133.40 = 70,277.31 : x
  2. Step 2: Convert to fraction form
    106,620.39/147,133.40 = 70,277.31/x
  3. Step 3: Cross multiply
    106,620.39x = 147,133.40 × 70,277.31
  4. Step 4: Simplify right side
    106,620.39x = 10,340,139,211.77
  5. Step 5: Solve for x
    x = 10,340,139,211.77/106,620.39
  6. Step 6: Final answer
    x = 96,980.88

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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.