Home / 211,009.68-316,448.91-70,735.50

Finding the Fourth Proportional to 211,009.68, 316,448.91 and 70,735.50

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Solution

The fourth proportional to 211,009.68, 316,448.91 and 70,735.50 is: 106,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,009.68 : 316,448.91 = 70,735.50 : x
  2. Step 2: Convert to fraction form
    211,009.68/316,448.91 = 70,735.50/x
  3. Step 3: Cross multiply
    211,009.68x = 316,448.91 × 70,735.50
  4. Step 4: Simplify right side
    211,009.68x = 22,384,171,873.31
  5. Step 5: Solve for x
    x = 22,384,171,873.31/211,009.68
  6. Step 6: Final answer
    x = 106,081.26

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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.