Home / 98,688.21-136,181.49-58,394.94

Finding the Fourth Proportional to 98,688.21, 136,181.49 and 58,394.94

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Solution

The fourth proportional to 98,688.21, 136,181.49 and 58,394.94 is: 80,580.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,688.21 : 136,181.49 = 58,394.94 : x
  2. Step 2: Convert to fraction form
    98,688.21/136,181.49 = 58,394.94/x
  3. Step 3: Cross multiply
    98,688.21x = 136,181.49 × 58,394.94
  4. Step 4: Simplify right side
    98,688.21x = 7,952,309,208.00
  5. Step 5: Solve for x
    x = 7,952,309,208.00/98,688.21
  6. Step 6: Final answer
    x = 80,580.14

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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.