Home / 117,148.70-161,661.75-66,163.52

Finding the Fourth Proportional to 117,148.70, 161,661.75 and 66,163.52

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Solution

The fourth proportional to 117,148.70, 161,661.75 and 66,163.52 is: 91,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,148.70 : 161,661.75 = 66,163.52 : x
  2. Step 2: Convert to fraction form
    117,148.70/161,661.75 = 66,163.52/x
  3. Step 3: Cross multiply
    117,148.70x = 161,661.75 × 66,163.52
  4. Step 4: Simplify right side
    117,148.70x = 10,696,110,429.36
  5. Step 5: Solve for x
    x = 10,696,110,429.36/117,148.70
  6. Step 6: Final answer
    x = 91,303.71

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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.