Home / 188,139.41-282,292.49-76,038.65

Finding the Fourth Proportional to 188,139.41, 282,292.49 and 76,038.65

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Solution

The fourth proportional to 188,139.41, 282,292.49 and 76,038.65 is: 114,091.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,139.41 : 282,292.49 = 76,038.65 : x
  2. Step 2: Convert to fraction form
    188,139.41/282,292.49 = 76,038.65/x
  3. Step 3: Cross multiply
    188,139.41x = 282,292.49 × 76,038.65
  4. Step 4: Simplify right side
    188,139.41x = 21,465,139,681.97
  5. Step 5: Solve for x
    x = 21,465,139,681.97/188,139.41
  6. Step 6: Final answer
    x = 114,091.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.