Home / 149,946.64-206,931.93-81,968.23

Finding the Fourth Proportional to 149,946.64, 206,931.93 and 81,968.23

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Solution

The fourth proportional to 149,946.64, 206,931.93 and 81,968.23 is: 113,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,946.64 : 206,931.93 = 81,968.23 : x
  2. Step 2: Convert to fraction form
    149,946.64/206,931.93 = 81,968.23/x
  3. Step 3: Cross multiply
    149,946.64x = 206,931.93 × 81,968.23
  4. Step 4: Simplify right side
    149,946.64x = 16,961,844,032.58
  5. Step 5: Solve for x
    x = 16,961,844,032.58/149,946.64
  6. Step 6: Final answer
    x = 113,119.20

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1.5x scale

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.