Home / 116,860.69-175,386.03-66,291.78

Finding the Fourth Proportional to 116,860.69, 175,386.03 and 66,291.78

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Solution

The fourth proportional to 116,860.69, 175,386.03 and 66,291.78 is: 99,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,860.69 : 175,386.03 = 66,291.78 : x
  2. Step 2: Convert to fraction form
    116,860.69/175,386.03 = 66,291.78/x
  3. Step 3: Cross multiply
    116,860.69x = 175,386.03 × 66,291.78
  4. Step 4: Simplify right side
    116,860.69x = 11,626,652,115.83
  5. Step 5: Solve for x
    x = 11,626,652,115.83/116,860.69
  6. Step 6: Final answer
    x = 99,491.56

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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.