Home / 228,941.63-315,941.78-126,969.11

Finding the Fourth Proportional to 228,941.63, 315,941.78 and 126,969.11

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Solution

The fourth proportional to 228,941.63, 315,941.78 and 126,969.11 is: 175,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,941.63 : 315,941.78 = 126,969.11 : x
  2. Step 2: Convert to fraction form
    228,941.63/315,941.78 = 126,969.11/x
  3. Step 3: Cross multiply
    228,941.63x = 315,941.78 × 126,969.11
  4. Step 4: Simplify right side
    228,941.63x = 40,114,846,618.42
  5. Step 5: Solve for x
    x = 40,114,846,618.42/228,941.63
  6. Step 6: Final answer
    x = 175,218.66

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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.