Home / 112,653.92-168,173.74-104,780.72

Finding the Fourth Proportional to 112,653.92, 168,173.74 and 104,780.72

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Solution

The fourth proportional to 112,653.92, 168,173.74 and 104,780.72 is: 156,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,653.92 : 168,173.74 = 104,780.72 : x
  2. Step 2: Convert to fraction form
    112,653.92/168,173.74 = 104,780.72/x
  3. Step 3: Cross multiply
    112,653.92x = 168,173.74 × 104,780.72
  4. Step 4: Simplify right side
    112,653.92x = 17,621,365,562.29
  5. Step 5: Solve for x
    x = 17,621,365,562.29/112,653.92
  6. Step 6: Final answer
    x = 156,420.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.