Home / 104,031.10-155,657.85-69,039.10

Finding the Fourth Proportional to 104,031.10, 155,657.85 and 69,039.10

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Solution

The fourth proportional to 104,031.10, 155,657.85 and 69,039.10 is: 103,300.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,031.10 : 155,657.85 = 69,039.10 : x
  2. Step 2: Convert to fraction form
    104,031.10/155,657.85 = 69,039.10/x
  3. Step 3: Cross multiply
    104,031.10x = 155,657.85 × 69,039.10
  4. Step 4: Simplify right side
    104,031.10x = 10,746,477,871.94
  5. Step 5: Solve for x
    x = 10,746,477,871.94/104,031.10
  6. Step 6: Final answer
    x = 103,300.63

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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.