Home / 139,827.04-192,963-76,165.36

Finding the Fourth Proportional to 139,827.04, 192,963 and 76,165.36

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Solution

The fourth proportional to 139,827.04, 192,963 and 76,165.36 is: 105,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,827.04 : 192,963 = 76,165.36 : x
  2. Step 2: Convert to fraction form
    139,827.04/192,963 = 76,165.36/x
  3. Step 3: Cross multiply
    139,827.04x = 192,963 × 76,165.36
  4. Step 4: Simplify right side
    139,827.04x = 14,697,096,361.68
  5. Step 5: Solve for x
    x = 14,697,096,361.68/139,827.04
  6. Step 6: Final answer
    x = 105,109.11

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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.