Home / 154,220.49-212,877.90-105,982.17

Finding the Fourth Proportional to 154,220.49, 212,877.90 and 105,982.17

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Solution

The fourth proportional to 154,220.49, 212,877.90 and 105,982.17 is: 146,292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,220.49 : 212,877.90 = 105,982.17 : x
  2. Step 2: Convert to fraction form
    154,220.49/212,877.90 = 105,982.17/x
  3. Step 3: Cross multiply
    154,220.49x = 212,877.90 × 105,982.17
  4. Step 4: Simplify right side
    154,220.49x = 22,561,261,787.04
  5. Step 5: Solve for x
    x = 22,561,261,787.04/154,220.49
  6. Step 6: Final answer
    x = 146,292.25

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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.