Home / 107,176.78-147,899.10-61,862.86

Finding the Fourth Proportional to 107,176.78, 147,899.10 and 61,862.86

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Solution

The fourth proportional to 107,176.78, 147,899.10 and 61,862.86 is: 85,367.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,176.78 : 147,899.10 = 61,862.86 : x
  2. Step 2: Convert to fraction form
    107,176.78/147,899.10 = 61,862.86/x
  3. Step 3: Cross multiply
    107,176.78x = 147,899.10 × 61,862.86
  4. Step 4: Simplify right side
    107,176.78x = 9,149,461,317.43
  5. Step 5: Solve for x
    x = 9,149,461,317.43/107,176.78
  6. Step 6: Final answer
    x = 85,367.94

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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.