Home / 165,421.44-248,156.76-76,683.91

Finding the Fourth Proportional to 165,421.44, 248,156.76 and 76,683.91

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Solution

The fourth proportional to 165,421.44, 248,156.76 and 76,683.91 is: 115,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,421.44 : 248,156.76 = 76,683.91 : x
  2. Step 2: Convert to fraction form
    165,421.44/248,156.76 = 76,683.91/x
  3. Step 3: Cross multiply
    165,421.44x = 248,156.76 × 76,683.91
  4. Step 4: Simplify right side
    165,421.44x = 19,029,630,649.73
  5. Step 5: Solve for x
    x = 19,029,630,649.73/165,421.44
  6. Step 6: Final answer
    x = 115,037.27

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1.5x scale

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.