Home / 118,022.51-162,869-64,307.97

Finding the Fourth Proportional to 118,022.51, 162,869 and 64,307.97

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Solution

The fourth proportional to 118,022.51, 162,869 and 64,307.97 is: 88,743.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,022.51 : 162,869 = 64,307.97 : x
  2. Step 2: Convert to fraction form
    118,022.51/162,869 = 64,307.97/x
  3. Step 3: Cross multiply
    118,022.51x = 162,869 × 64,307.97
  4. Step 4: Simplify right side
    118,022.51x = 10,473,774,765.93
  5. Step 5: Solve for x
    x = 10,473,774,765.93/118,022.51
  6. Step 6: Final answer
    x = 88,743.87

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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.