Home / 163,922.40-245,883.60-80,805.60

Finding the Fourth Proportional to 163,922.40, 245,883.60 and 80,805.60

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Solution

The fourth proportional to 163,922.40, 245,883.60 and 80,805.60 is: 121,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,922.40 : 245,883.60 = 80,805.60 : x
  2. Step 2: Convert to fraction form
    163,922.40/245,883.60 = 80,805.60/x
  3. Step 3: Cross multiply
    163,922.40x = 245,883.60 × 80,805.60
  4. Step 4: Simplify right side
    163,922.40x = 19,868,771,828.16
  5. Step 5: Solve for x
    x = 19,868,771,828.16/163,922.40
  6. Step 6: Final answer
    x = 121,208.40

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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.