Home / 211,176.30-316,698.20-68,989.16

Finding the Fourth Proportional to 211,176.30, 316,698.20 and 68,989.16

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Solution

The fourth proportional to 211,176.30, 316,698.20 and 68,989.16 is: 103,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,176.30 : 316,698.20 = 68,989.16 : x
  2. Step 2: Convert to fraction form
    211,176.30/316,698.20 = 68,989.16/x
  3. Step 3: Cross multiply
    211,176.30x = 316,698.20 × 68,989.16
  4. Step 4: Simplify right side
    211,176.30x = 21,848,742,791.51
  5. Step 5: Solve for x
    x = 21,848,742,791.51/211,176.30
  6. Step 6: Final answer
    x = 103,462.10

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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.