Home / 121,284.70-181,927.05-108,454.30

Finding the Fourth Proportional to 121,284.70, 181,927.05 and 108,454.30

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Solution

The fourth proportional to 121,284.70, 181,927.05 and 108,454.30 is: 162,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.70 : 181,927.05 = 108,454.30 : x
  2. Step 2: Convert to fraction form
    121,284.70/181,927.05 = 108,454.30/x
  3. Step 3: Cross multiply
    121,284.70x = 181,927.05 × 108,454.30
  4. Step 4: Simplify right side
    121,284.70x = 19,730,770,858.82
  5. Step 5: Solve for x
    x = 19,730,770,858.82/121,284.70
  6. Step 6: Final answer
    x = 162,681.45

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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.