Home / 98,629.68-136,106.04-53,916.72

Finding the Fourth Proportional to 98,629.68, 136,106.04 and 53,916.72

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Solution

The fourth proportional to 98,629.68, 136,106.04 and 53,916.72 is: 74,403.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,629.68 : 136,106.04 = 53,916.72 : x
  2. Step 2: Convert to fraction form
    98,629.68/136,106.04 = 53,916.72/x
  3. Step 3: Cross multiply
    98,629.68x = 136,106.04 × 53,916.72
  4. Step 4: Simplify right side
    98,629.68x = 7,338,391,248.99
  5. Step 5: Solve for x
    x = 7,338,391,248.99/98,629.68
  6. Step 6: Final answer
    x = 74,403.48

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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.