Home / 112,803.76-168,813.96-70,091.65

Finding the Fourth Proportional to 112,803.76, 168,813.96 and 70,091.65

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Solution

The fourth proportional to 112,803.76, 168,813.96 and 70,091.65 is: 104,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,803.76 : 168,813.96 = 70,091.65 : x
  2. Step 2: Convert to fraction form
    112,803.76/168,813.96 = 70,091.65/x
  3. Step 3: Cross multiply
    112,803.76x = 168,813.96 × 70,091.65
  4. Step 4: Simplify right side
    112,803.76x = 11,832,448,999.43
  5. Step 5: Solve for x
    x = 11,832,448,999.43/112,803.76
  6. Step 6: Final answer
    x = 104,894.10

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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.