Home / 457,555.36-686,323.32-125,131.36

Finding the Fourth Proportional to 457,555.36, 686,323.32 and 125,131.36

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Solution

The fourth proportional to 457,555.36, 686,323.32 and 125,131.36 is: 187,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,555.36 : 686,323.32 = 125,131.36 : x
  2. Step 2: Convert to fraction form
    457,555.36/686,323.32 = 125,131.36/x
  3. Step 3: Cross multiply
    457,555.36x = 686,323.32 × 125,131.36
  4. Step 4: Simplify right side
    457,555.36x = 85,880,570,431.32
  5. Step 5: Solve for x
    x = 85,880,570,431.32/457,555.36
  6. Step 6: Final answer
    x = 187,694.38

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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.