Home / 78,126.98-117,197.39-21,967.58

Finding the Fourth Proportional to 78,126.98, 117,197.39 and 21,967.58

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Solution

The fourth proportional to 78,126.98, 117,197.39 and 21,967.58 is: 32,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,126.98 : 117,197.39 = 21,967.58 : x
  2. Step 2: Convert to fraction form
    78,126.98/117,197.39 = 21,967.58/x
  3. Step 3: Cross multiply
    78,126.98x = 117,197.39 × 21,967.58
  4. Step 4: Simplify right side
    78,126.98x = 2,574,542,344.79
  5. Step 5: Solve for x
    x = 2,574,542,344.79/78,126.98
  6. Step 6: Final answer
    x = 32,953.31

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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.