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Finding the Fourth Proportional to 145,611.90, 200,895.93 and 118,708.02

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Solution

The fourth proportional to 145,611.90, 200,895.93 and 118,708.02 is: 163,777.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,611.90 : 200,895.93 = 118,708.02 : x
  2. Step 2: Convert to fraction form
    145,611.90/200,895.93 = 118,708.02/x
  3. Step 3: Cross multiply
    145,611.90x = 200,895.93 × 118,708.02
  4. Step 4: Simplify right side
    145,611.90x = 23,847,958,076.36
  5. Step 5: Solve for x
    x = 23,847,958,076.36/145,611.90
  6. Step 6: Final answer
    x = 163,777.54

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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.