Home / 102,668.89-141,681.58-57,347.52

Finding the Fourth Proportional to 102,668.89, 141,681.58 and 57,347.52

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Solution

The fourth proportional to 102,668.89, 141,681.58 and 57,347.52 is: 79,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,668.89 : 141,681.58 = 57,347.52 : x
  2. Step 2: Convert to fraction form
    102,668.89/141,681.58 = 57,347.52/x
  3. Step 3: Cross multiply
    102,668.89x = 141,681.58 × 57,347.52
  4. Step 4: Simplify right side
    102,668.89x = 8,125,087,242.68
  5. Step 5: Solve for x
    x = 8,125,087,242.68/102,668.89
  6. Step 6: Final answer
    x = 79,138.75

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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.