Home / 123,916.50-170,926.74-98,825.94

Finding the Fourth Proportional to 123,916.50, 170,926.74 and 98,825.94

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Solution

The fourth proportional to 123,916.50, 170,926.74 and 98,825.94 is: 136,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,916.50 : 170,926.74 = 98,825.94 : x
  2. Step 2: Convert to fraction form
    123,916.50/170,926.74 = 98,825.94/x
  3. Step 3: Cross multiply
    123,916.50x = 170,926.74 × 98,825.94
  4. Step 4: Simplify right side
    123,916.50x = 16,891,995,751.64
  5. Step 5: Solve for x
    x = 16,891,995,751.64/123,916.50
  6. Step 6: Final answer
    x = 136,317.57

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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.