Home / 134,542-185,668.01-77,986.18

Finding the Fourth Proportional to 134,542, 185,668.01 and 77,986.18

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Solution

The fourth proportional to 134,542, 185,668.01 and 77,986.18 is: 107,620.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,542 : 185,668.01 = 77,986.18 : x
  2. Step 2: Convert to fraction form
    134,542/185,668.01 = 77,986.18/x
  3. Step 3: Cross multiply
    134,542x = 185,668.01 × 77,986.18
  4. Step 4: Simplify right side
    134,542x = 14,479,538,848.10
  5. Step 5: Solve for x
    x = 14,479,538,848.10/134,542
  6. Step 6: Final answer
    x = 107,620.96

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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.