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Finding the Fourth Proportional to 114,890.40, 158,630.40 and 83,203.20

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Solution

The fourth proportional to 114,890.40, 158,630.40 and 83,203.20 is: 114,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,890.40 : 158,630.40 = 83,203.20 : x
  2. Step 2: Convert to fraction form
    114,890.40/158,630.40 = 83,203.20/x
  3. Step 3: Cross multiply
    114,890.40x = 158,630.40 × 83,203.20
  4. Step 4: Simplify right side
    114,890.40x = 13,198,556,897.28
  5. Step 5: Solve for x
    x = 13,198,556,897.28/114,890.40
  6. Step 6: Final answer
    x = 114,879.55

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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.