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Finding the Fourth Proportional to 149,258.01, 205,625.65 and 103,858.02

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Solution

The fourth proportional to 149,258.01, 205,625.65 and 103,858.02 is: 143,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,258.01 : 205,625.65 = 103,858.02 : x
  2. Step 2: Convert to fraction form
    149,258.01/205,625.65 = 103,858.02/x
  3. Step 3: Cross multiply
    149,258.01x = 205,625.65 × 103,858.02
  4. Step 4: Simplify right side
    149,258.01x = 21,355,872,870.21
  5. Step 5: Solve for x
    x = 21,355,872,870.21/149,258.01
  6. Step 6: Final answer
    x = 143,080.25

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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.