Home / 161,705.40-242,558.10-122,047.80

Finding the Fourth Proportional to 161,705.40, 242,558.10 and 122,047.80

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Solution

The fourth proportional to 161,705.40, 242,558.10 and 122,047.80 is: 183,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,705.40 : 242,558.10 = 122,047.80 : x
  2. Step 2: Convert to fraction form
    161,705.40/242,558.10 = 122,047.80/x
  3. Step 3: Cross multiply
    161,705.40x = 242,558.10 × 122,047.80
  4. Step 4: Simplify right side
    161,705.40x = 29,603,682,477.18
  5. Step 5: Solve for x
    x = 29,603,682,477.18/161,705.40
  6. Step 6: Final answer
    x = 183,071.70

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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.