Home / 142,026.29-212,650.84-138,261.82

Finding the Fourth Proportional to 142,026.29, 212,650.84 and 138,261.82

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Solution

The fourth proportional to 142,026.29, 212,650.84 and 138,261.82 is: 207,014.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,026.29 : 212,650.84 = 138,261.82 : x
  2. Step 2: Convert to fraction form
    142,026.29/212,650.84 = 138,261.82/x
  3. Step 3: Cross multiply
    142,026.29x = 212,650.84 × 138,261.82
  4. Step 4: Simplify right side
    142,026.29x = 29,401,490,408.37
  5. Step 5: Solve for x
    x = 29,401,490,408.37/142,026.29
  6. Step 6: Final answer
    x = 207,014.42

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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.