Home / 172,500.64-238,160.26-118,143.96

Finding the Fourth Proportional to 172,500.64, 238,160.26 and 118,143.96

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Solution

The fourth proportional to 172,500.64, 238,160.26 and 118,143.96 is: 163,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,500.64 : 238,160.26 = 118,143.96 : x
  2. Step 2: Convert to fraction form
    172,500.64/238,160.26 = 118,143.96/x
  3. Step 3: Cross multiply
    172,500.64x = 238,160.26 × 118,143.96
  4. Step 4: Simplify right side
    172,500.64x = 28,137,196,231.03
  5. Step 5: Solve for x
    x = 28,137,196,231.03/172,500.64
  6. Step 6: Final answer
    x = 163,113.58

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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.