Home / 117,974.07-162,807.98-64,260.81

Finding the Fourth Proportional to 117,974.07, 162,807.98 and 64,260.81

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Solution

The fourth proportional to 117,974.07, 162,807.98 and 64,260.81 is: 88,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,974.07 : 162,807.98 = 64,260.81 : x
  2. Step 2: Convert to fraction form
    117,974.07/162,807.98 = 64,260.81/x
  3. Step 3: Cross multiply
    117,974.07x = 162,807.98 × 64,260.81
  4. Step 4: Simplify right side
    117,974.07x = 10,462,172,347.96
  5. Step 5: Solve for x
    x = 10,462,172,347.96/117,974.07
  6. Step 6: Final answer
    x = 88,681.97

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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.