Home / 91,816.48-137,457.36-68,228.64

Finding the Fourth Proportional to 91,816.48, 137,457.36 and 68,228.64

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Solution

The fourth proportional to 91,816.48, 137,457.36 and 68,228.64 is: 102,144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,816.48 : 137,457.36 = 68,228.64 : x
  2. Step 2: Convert to fraction form
    91,816.48/137,457.36 = 68,228.64/x
  3. Step 3: Cross multiply
    91,816.48x = 137,457.36 × 68,228.64
  4. Step 4: Simplify right side
    91,816.48x = 9,378,528,730.79
  5. Step 5: Solve for x
    x = 9,378,528,730.79/91,816.48
  6. Step 6: Final answer
    x = 102,144.29

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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.