Home / 98,406.05-147,613.71-31,851.38

Finding the Fourth Proportional to 98,406.05, 147,613.71 and 31,851.38

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Solution

The fourth proportional to 98,406.05, 147,613.71 and 31,851.38 is: 47,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,406.05 : 147,613.71 = 31,851.38 : x
  2. Step 2: Convert to fraction form
    98,406.05/147,613.71 = 31,851.38/x
  3. Step 3: Cross multiply
    98,406.05x = 147,613.71 × 31,851.38
  4. Step 4: Simplify right side
    98,406.05x = 4,701,699,632.35
  5. Step 5: Solve for x
    x = 4,701,699,632.35/98,406.05
  6. Step 6: Final answer
    x = 47,778.57

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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.