Home / 121,258.40-181,887.60-108,573.80

Finding the Fourth Proportional to 121,258.40, 181,887.60 and 108,573.80

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Solution

The fourth proportional to 121,258.40, 181,887.60 and 108,573.80 is: 162,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,258.40 : 181,887.60 = 108,573.80 : x
  2. Step 2: Convert to fraction form
    121,258.40/181,887.60 = 108,573.80/x
  3. Step 3: Cross multiply
    121,258.40x = 181,887.60 × 108,573.80
  4. Step 4: Simplify right side
    121,258.40x = 19,748,227,904.88
  5. Step 5: Solve for x
    x = 19,748,227,904.88/121,258.40
  6. Step 6: Final answer
    x = 162,860.70

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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.