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Finding the Fourth Proportional to 148,637.64, 205,106.40 and 88,197.87

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Solution

The fourth proportional to 148,637.64, 205,106.40 and 88,197.87 is: 121,705.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,637.64 : 205,106.40 = 88,197.87 : x
  2. Step 2: Convert to fraction form
    148,637.64/205,106.40 = 88,197.87/x
  3. Step 3: Cross multiply
    148,637.64x = 205,106.40 × 88,197.87
  4. Step 4: Simplify right side
    148,637.64x = 18,089,947,603.37
  5. Step 5: Solve for x
    x = 18,089,947,603.37/148,637.64
  6. Step 6: Final answer
    x = 121,705.02

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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.