Home / 160,739.34-221,805.45-89,118.06

Finding the Fourth Proportional to 160,739.34, 221,805.45 and 89,118.06

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Solution

The fourth proportional to 160,739.34, 221,805.45 and 89,118.06 is: 122,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,739.34 : 221,805.45 = 89,118.06 : x
  2. Step 2: Convert to fraction form
    160,739.34/221,805.45 = 89,118.06/x
  3. Step 3: Cross multiply
    160,739.34x = 221,805.45 × 89,118.06
  4. Step 4: Simplify right side
    160,739.34x = 19,766,871,401.43
  5. Step 5: Solve for x
    x = 19,766,871,401.43/160,739.34
  6. Step 6: Final answer
    x = 122,974.70

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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.