Home / 112,738.69-155,581.08-61,756.12

Finding the Fourth Proportional to 112,738.69, 155,581.08 and 61,756.12

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Solution

The fourth proportional to 112,738.69, 155,581.08 and 61,756.12 is: 85,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,738.69 : 155,581.08 = 61,756.12 : x
  2. Step 2: Convert to fraction form
    112,738.69/155,581.08 = 61,756.12/x
  3. Step 3: Cross multiply
    112,738.69x = 155,581.08 × 61,756.12
  4. Step 4: Simplify right side
    112,738.69x = 9,608,083,068.30
  5. Step 5: Solve for x
    x = 9,608,083,068.30/112,738.69
  6. Step 6: Final answer
    x = 85,224.37

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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.