Home / 149,946.67-206,931.93-81,968.17

Finding the Fourth Proportional to 149,946.67, 206,931.93 and 81,968.17

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Solution

The fourth proportional to 149,946.67, 206,931.93 and 81,968.17 is: 113,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,946.67 : 206,931.93 = 81,968.17 : x
  2. Step 2: Convert to fraction form
    149,946.67/206,931.93 = 81,968.17/x
  3. Step 3: Cross multiply
    149,946.67x = 206,931.93 × 81,968.17
  4. Step 4: Simplify right side
    149,946.67x = 16,961,831,616.67
  5. Step 5: Solve for x
    x = 16,961,831,616.67/149,946.67
  6. Step 6: Final answer
    x = 113,119.10

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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.