Home / 112,215.78-168,346.62-45,655.38

Finding the Fourth Proportional to 112,215.78, 168,346.62 and 45,655.38

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Solution

The fourth proportional to 112,215.78, 168,346.62 and 45,655.38 is: 68,492.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,215.78 : 168,346.62 = 45,655.38 : x
  2. Step 2: Convert to fraction form
    112,215.78/168,346.62 = 45,655.38/x
  3. Step 3: Cross multiply
    112,215.78x = 168,346.62 × 45,655.38
  4. Step 4: Simplify right side
    112,215.78x = 7,685,928,907.82
  5. Step 5: Solve for x
    x = 7,685,928,907.82/112,215.78
  6. Step 6: Final answer
    x = 68,492.41

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1.5x scale

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.