Home / 107,491.18-148,379.16-71,668.12

Finding the Fourth Proportional to 107,491.18, 148,379.16 and 71,668.12

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Solution

The fourth proportional to 107,491.18, 148,379.16 and 71,668.12 is: 98,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,491.18 : 148,379.16 = 71,668.12 : x
  2. Step 2: Convert to fraction form
    107,491.18/148,379.16 = 71,668.12/x
  3. Step 3: Cross multiply
    107,491.18x = 148,379.16 × 71,668.12
  4. Step 4: Simplify right side
    107,491.18x = 10,634,055,444.38
  5. Step 5: Solve for x
    x = 10,634,055,444.38/107,491.18
  6. Step 6: Final answer
    x = 98,929.56

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1.5x scale

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.