Home / 149,948.94-206,929.54-81,966.20

Finding the Fourth Proportional to 149,948.94, 206,929.54 and 81,966.20

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Solution

The fourth proportional to 149,948.94, 206,929.54 and 81,966.20 is: 113,113.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,948.94 : 206,929.54 = 81,966.20 : x
  2. Step 2: Convert to fraction form
    149,948.94/206,929.54 = 81,966.20/x
  3. Step 3: Cross multiply
    149,948.94x = 206,929.54 × 81,966.20
  4. Step 4: Simplify right side
    149,948.94x = 16,961,228,061.55
  5. Step 5: Solve for x
    x = 16,961,228,061.55/149,948.94
  6. Step 6: Final answer
    x = 113,113.36

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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.