Home / 161,721.60-242,582.40-122,355.60

Finding the Fourth Proportional to 161,721.60, 242,582.40 and 122,355.60

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Solution

The fourth proportional to 161,721.60, 242,582.40 and 122,355.60 is: 183,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,721.60 : 242,582.40 = 122,355.60 : x
  2. Step 2: Convert to fraction form
    161,721.60/242,582.40 = 122,355.60/x
  3. Step 3: Cross multiply
    161,721.60x = 242,582.40 × 122,355.60
  4. Step 4: Simplify right side
    161,721.60x = 29,681,315,101.44
  5. Step 5: Solve for x
    x = 29,681,315,101.44/161,721.60
  6. Step 6: Final answer
    x = 183,533.40

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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.