Home / 108,450.27-162,392.45-87,274.64

Finding the Fourth Proportional to 108,450.27, 162,392.45 and 87,274.64

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Solution

The fourth proportional to 108,450.27, 162,392.45 and 87,274.64 is: 130,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,450.27 : 162,392.45 = 87,274.64 : x
  2. Step 2: Convert to fraction form
    108,450.27/162,392.45 = 87,274.64/x
  3. Step 3: Cross multiply
    108,450.27x = 162,392.45 × 87,274.64
  4. Step 4: Simplify right side
    108,450.27x = 14,172,742,582.08
  5. Step 5: Solve for x
    x = 14,172,742,582.08/108,450.27
  6. Step 6: Final answer
    x = 130,684.25

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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.