Home / 154,220.88-212,825.34-89,705.58

Finding the Fourth Proportional to 154,220.88, 212,825.34 and 89,705.58

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Solution

The fourth proportional to 154,220.88, 212,825.34 and 89,705.58 is: 123,794.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,220.88 : 212,825.34 = 89,705.58 : x
  2. Step 2: Convert to fraction form
    154,220.88/212,825.34 = 89,705.58/x
  3. Step 3: Cross multiply
    154,220.88x = 212,825.34 × 89,705.58
  4. Step 4: Simplify right side
    154,220.88x = 19,091,620,563.40
  5. Step 5: Solve for x
    x = 19,091,620,563.40/154,220.88
  6. Step 6: Final answer
    x = 123,794.01

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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.