Home / 106,401.21-159,494.10-68,985.06

Finding the Fourth Proportional to 106,401.21, 159,494.10 and 68,985.06

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Solution

The fourth proportional to 106,401.21, 159,494.10 and 68,985.06 is: 103,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,401.21 : 159,494.10 = 68,985.06 : x
  2. Step 2: Convert to fraction form
    106,401.21/159,494.10 = 68,985.06/x
  3. Step 3: Cross multiply
    106,401.21x = 159,494.10 × 68,985.06
  4. Step 4: Simplify right side
    106,401.21x = 11,002,710,058.15
  5. Step 5: Solve for x
    x = 11,002,710,058.15/106,401.21
  6. Step 6: Final answer
    x = 103,407.75

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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.