Home / 210,719.07-290,792.43-115,234.65

Finding the Fourth Proportional to 210,719.07, 290,792.43 and 115,234.65

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Solution

The fourth proportional to 210,719.07, 290,792.43 and 115,234.65 is: 159,023.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,719.07 : 290,792.43 = 115,234.65 : x
  2. Step 2: Convert to fraction form
    210,719.07/290,792.43 = 115,234.65/x
  3. Step 3: Cross multiply
    210,719.07x = 290,792.43 × 115,234.65
  4. Step 4: Simplify right side
    210,719.07x = 33,509,363,893.70
  5. Step 5: Solve for x
    x = 33,509,363,893.70/210,719.07
  6. Step 6: Final answer
    x = 159,023.88

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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.