Home / 142,007.72-212,808.60-104,271.75

Finding the Fourth Proportional to 142,007.72, 212,808.60 and 104,271.75

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Solution

The fourth proportional to 142,007.72, 212,808.60 and 104,271.75 is: 156,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,007.72 : 212,808.60 = 104,271.75 : x
  2. Step 2: Convert to fraction form
    142,007.72/212,808.60 = 104,271.75/x
  3. Step 3: Cross multiply
    142,007.72x = 212,808.60 × 104,271.75
  4. Step 4: Simplify right side
    142,007.72x = 22,189,925,137.05
  5. Step 5: Solve for x
    x = 22,189,925,137.05/142,007.72
  6. Step 6: Final answer
    x = 156,258.59

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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.