Home / 98,868.51-148,401.18-54,516.15

Finding the Fourth Proportional to 98,868.51, 148,401.18 and 54,516.15

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Solution

The fourth proportional to 98,868.51, 148,401.18 and 54,516.15 is: 81,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,868.51 : 148,401.18 = 54,516.15 : x
  2. Step 2: Convert to fraction form
    98,868.51/148,401.18 = 54,516.15/x
  3. Step 3: Cross multiply
    98,868.51x = 148,401.18 × 54,516.15
  4. Step 4: Simplify right side
    98,868.51x = 8,090,260,989.06
  5. Step 5: Solve for x
    x = 8,090,260,989.06/98,868.51
  6. Step 6: Final answer
    x = 81,828.49

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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.