Home / 97,980.03-135,281.75-76,493.97

Finding the Fourth Proportional to 97,980.03, 135,281.75 and 76,493.97

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Solution

The fourth proportional to 97,980.03, 135,281.75 and 76,493.97 is: 105,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,980.03 : 135,281.75 = 76,493.97 : x
  2. Step 2: Convert to fraction form
    97,980.03/135,281.75 = 76,493.97/x
  3. Step 3: Cross multiply
    97,980.03x = 135,281.75 × 76,493.97
  4. Step 4: Simplify right side
    97,980.03x = 10,348,237,743.58
  5. Step 5: Solve for x
    x = 10,348,237,743.58/97,980.03
  6. Step 6: Final answer
    x = 105,615.78

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1.5x scale

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.