Home / 112,042.15-168,080.69-45,486.95

Finding the Fourth Proportional to 112,042.15, 168,080.69 and 45,486.95

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Solution

The fourth proportional to 112,042.15, 168,080.69 and 45,486.95 is: 68,237.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,042.15 : 168,080.69 = 45,486.95 : x
  2. Step 2: Convert to fraction form
    112,042.15/168,080.69 = 45,486.95/x
  3. Step 3: Cross multiply
    112,042.15x = 168,080.69 × 45,486.95
  4. Step 4: Simplify right side
    112,042.15x = 7,645,478,178.12
  5. Step 5: Solve for x
    x = 7,645,478,178.12/112,042.15
  6. Step 6: Final answer
    x = 68,237.52

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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.