Home / 109,577.70-164,354.40-89,821.80

Finding the Fourth Proportional to 109,577.70, 164,354.40 and 89,821.80

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Solution

The fourth proportional to 109,577.70, 164,354.40 and 89,821.80 is: 134,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,577.70 : 164,354.40 = 89,821.80 : x
  2. Step 2: Convert to fraction form
    109,577.70/164,354.40 = 89,821.80/x
  3. Step 3: Cross multiply
    109,577.70x = 164,354.40 × 89,821.80
  4. Step 4: Simplify right side
    109,577.70x = 14,762,608,045.92
  5. Step 5: Solve for x
    x = 14,762,608,045.92/109,577.70
  6. Step 6: Final answer
    x = 134,722.74

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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.