Home / 107,555.58-148,488.39-71,806.14

Finding the Fourth Proportional to 107,555.58, 148,488.39 and 71,806.14

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Solution

The fourth proportional to 107,555.58, 148,488.39 and 71,806.14 is: 99,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,555.58 : 148,488.39 = 71,806.14 : x
  2. Step 2: Convert to fraction form
    107,555.58/148,488.39 = 71,806.14/x
  3. Step 3: Cross multiply
    107,555.58x = 148,488.39 × 71,806.14
  4. Step 4: Simplify right side
    107,555.58x = 10,662,378,120.71
  5. Step 5: Solve for x
    x = 10,662,378,120.71/107,555.58
  6. Step 6: Final answer
    x = 99,133.66

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1.5x scale

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.