Home / 210,689.07-290,750.94-115,195.83

Finding the Fourth Proportional to 210,689.07, 290,750.94 and 115,195.83

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Solution

The fourth proportional to 210,689.07, 290,750.94 and 115,195.83 is: 158,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,689.07 : 290,750.94 = 115,195.83 : x
  2. Step 2: Convert to fraction form
    210,689.07/290,750.94 = 115,195.83/x
  3. Step 3: Cross multiply
    210,689.07x = 290,750.94 × 115,195.83
  4. Step 4: Simplify right side
    210,689.07x = 33,493,295,856.58
  5. Step 5: Solve for x
    x = 33,493,295,856.58/210,689.07
  6. Step 6: Final answer
    x = 158,970.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.