Home / 102,668.54-141,681.06-57,347.15

Finding the Fourth Proportional to 102,668.54, 141,681.06 and 57,347.15

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Solution

The fourth proportional to 102,668.54, 141,681.06 and 57,347.15 is: 79,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,668.54 : 141,681.06 = 57,347.15 : x
  2. Step 2: Convert to fraction form
    102,668.54/141,681.06 = 57,347.15/x
  3. Step 3: Cross multiply
    102,668.54x = 141,681.06 × 57,347.15
  4. Step 4: Simplify right side
    102,668.54x = 8,125,004,291.57
  5. Step 5: Solve for x
    x = 8,125,004,291.57/102,668.54
  6. Step 6: Final answer
    x = 79,138.21

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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.