Home / 153,942.70-212,587.64-145,556.01

Finding the Fourth Proportional to 153,942.70, 212,587.64 and 145,556.01

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Solution

The fourth proportional to 153,942.70, 212,587.64 and 145,556.01 is: 201,006.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,942.70 : 212,587.64 = 145,556.01 : x
  2. Step 2: Convert to fraction form
    153,942.70/212,587.64 = 145,556.01/x
  3. Step 3: Cross multiply
    153,942.70x = 212,587.64 × 145,556.01
  4. Step 4: Simplify right side
    153,942.70x = 30,943,408,653.72
  5. Step 5: Solve for x
    x = 30,943,408,653.72/153,942.70
  6. Step 6: Final answer
    x = 201,006.01

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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.