Home / 112,159.92-168,271.66-45,647.78

Finding the Fourth Proportional to 112,159.92, 168,271.66 and 45,647.78

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Solution

The fourth proportional to 112,159.92, 168,271.66 and 45,647.78 is: 68,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,159.92 : 168,271.66 = 45,647.78 : x
  2. Step 2: Convert to fraction form
    112,159.92/168,271.66 = 45,647.78/x
  3. Step 3: Cross multiply
    112,159.92x = 168,271.66 × 45,647.78
  4. Step 4: Simplify right side
    112,159.92x = 7,681,228,022.47
  5. Step 5: Solve for x
    x = 7,681,228,022.47/112,159.92
  6. Step 6: Final answer
    x = 68,484.61

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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.