Home / 98,705.26-136,212.87-53,383.30

Finding the Fourth Proportional to 98,705.26, 136,212.87 and 53,383.30

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Solution

The fourth proportional to 98,705.26, 136,212.87 and 53,383.30 is: 73,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,705.26 : 136,212.87 = 53,383.30 : x
  2. Step 2: Convert to fraction form
    98,705.26/136,212.87 = 53,383.30/x
  3. Step 3: Cross multiply
    98,705.26x = 136,212.87 × 53,383.30
  4. Step 4: Simplify right side
    98,705.26x = 7,271,492,503.07
  5. Step 5: Solve for x
    x = 7,271,492,503.07/98,705.26
  6. Step 6: Final answer
    x = 73,668.74

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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.