Home / 137,386.26-189,583.83-76,942.98

Finding the Fourth Proportional to 137,386.26, 189,583.83 and 76,942.98

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Solution

The fourth proportional to 137,386.26, 189,583.83 and 76,942.98 is: 106,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,386.26 : 189,583.83 = 76,942.98 : x
  2. Step 2: Convert to fraction form
    137,386.26/189,583.83 = 76,942.98/x
  3. Step 3: Cross multiply
    137,386.26x = 189,583.83 × 76,942.98
  4. Step 4: Simplify right side
    137,386.26x = 14,587,144,840.01
  5. Step 5: Solve for x
    x = 14,587,144,840.01/137,386.26
  6. Step 6: Final answer
    x = 106,176.16

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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.