Home / 358,852.10-538,383.40-106,139.23

Finding the Fourth Proportional to 358,852.10, 538,383.40 and 106,139.23

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Solution

The fourth proportional to 358,852.10, 538,383.40 and 106,139.23 is: 159,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,852.10 : 538,383.40 = 106,139.23 : x
  2. Step 2: Convert to fraction form
    358,852.10/538,383.40 = 106,139.23/x
  3. Step 3: Cross multiply
    358,852.10x = 538,383.40 × 106,139.23
  4. Step 4: Simplify right side
    358,852.10x = 57,143,597,909.48
  5. Step 5: Solve for x
    x = 57,143,597,909.48/358,852.10
  6. Step 6: Final answer
    x = 159,239.97

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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.