Home / 98,187.40-147,345.66-53,845.36

Finding the Fourth Proportional to 98,187.40, 147,345.66 and 53,845.36

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Solution

The fourth proportional to 98,187.40, 147,345.66 and 53,845.36 is: 80,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,187.40 : 147,345.66 = 53,845.36 : x
  2. Step 2: Convert to fraction form
    98,187.40/147,345.66 = 53,845.36/x
  3. Step 3: Cross multiply
    98,187.40x = 147,345.66 × 53,845.36
  4. Step 4: Simplify right side
    98,187.40x = 7,933,880,107.14
  5. Step 5: Solve for x
    x = 7,933,880,107.14/98,187.40
  6. Step 6: Final answer
    x = 80,803.44

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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.