Home / 213,142.90-294,135.60-117,649.57

Finding the Fourth Proportional to 213,142.90, 294,135.60 and 117,649.57

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Solution

The fourth proportional to 213,142.90, 294,135.60 and 117,649.57 is: 162,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,142.90 : 294,135.60 = 117,649.57 : x
  2. Step 2: Convert to fraction form
    213,142.90/294,135.60 = 117,649.57/x
  3. Step 3: Cross multiply
    213,142.90x = 294,135.60 × 117,649.57
  4. Step 4: Simplify right side
    213,142.90x = 34,604,926,861.69
  5. Step 5: Solve for x
    x = 34,604,926,861.69/213,142.90
  6. Step 6: Final answer
    x = 162,355.52

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1.5x scale

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.