Home / 97,940.53-135,010.96-76,682.89

Finding the Fourth Proportional to 97,940.53, 135,010.96 and 76,682.89

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Solution

The fourth proportional to 97,940.53, 135,010.96 and 76,682.89 is: 105,707.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,940.53 : 135,010.96 = 76,682.89 : x
  2. Step 2: Convert to fraction form
    97,940.53/135,010.96 = 76,682.89/x
  3. Step 3: Cross multiply
    97,940.53x = 135,010.96 × 76,682.89
  4. Step 4: Simplify right side
    97,940.53x = 10,353,030,594.47
  5. Step 5: Solve for x
    x = 10,353,030,594.47/97,940.53
  6. Step 6: Final answer
    x = 105,707.32

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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.