Home / 98,156.96-135,421.03-55,690.89

Finding the Fourth Proportional to 98,156.96, 135,421.03 and 55,690.89

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Solution

The fourth proportional to 98,156.96, 135,421.03 and 55,690.89 is: 76,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,156.96 : 135,421.03 = 55,690.89 : x
  2. Step 2: Convert to fraction form
    98,156.96/135,421.03 = 55,690.89/x
  3. Step 3: Cross multiply
    98,156.96x = 135,421.03 × 55,690.89
  4. Step 4: Simplify right side
    98,156.96x = 7,541,718,008.94
  5. Step 5: Solve for x
    x = 7,541,718,008.94/98,156.96
  6. Step 6: Final answer
    x = 76,833.24

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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.