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Finding the Fourth Proportional to 154,047.70, 230,962.20 and 69,848.20

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Solution

The fourth proportional to 154,047.70, 230,962.20 and 69,848.20 is: 104,722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.70 : 230,962.20 = 69,848.20 : x
  2. Step 2: Convert to fraction form
    154,047.70/230,962.20 = 69,848.20/x
  3. Step 3: Cross multiply
    154,047.70x = 230,962.20 × 69,848.20
  4. Step 4: Simplify right side
    154,047.70x = 16,132,293,938.04
  5. Step 5: Solve for x
    x = 16,132,293,938.04/154,047.70
  6. Step 6: Final answer
    x = 104,722.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.