Home / 139,317.76-192,261.36-84,851.20

Finding the Fourth Proportional to 139,317.76, 192,261.36 and 84,851.20

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Solution

The fourth proportional to 139,317.76, 192,261.36 and 84,851.20 is: 117,096.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,317.76 : 192,261.36 = 84,851.20 : x
  2. Step 2: Convert to fraction form
    139,317.76/192,261.36 = 84,851.20/x
  3. Step 3: Cross multiply
    139,317.76x = 192,261.36 × 84,851.20
  4. Step 4: Simplify right side
    139,317.76x = 16,313,607,109.63
  5. Step 5: Solve for x
    x = 16,313,607,109.63/139,317.76
  6. Step 6: Final answer
    x = 117,096.39

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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.