Home / 97,728.14-134,795.31-89,687.76

Finding the Fourth Proportional to 97,728.14, 134,795.31 and 89,687.76

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Solution

The fourth proportional to 97,728.14, 134,795.31 and 89,687.76 is: 123,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,728.14 : 134,795.31 = 89,687.76 : x
  2. Step 2: Convert to fraction form
    97,728.14/134,795.31 = 89,687.76/x
  3. Step 3: Cross multiply
    97,728.14x = 134,795.31 × 89,687.76
  4. Step 4: Simplify right side
    97,728.14x = 12,089,489,412.41
  5. Step 5: Solve for x
    x = 12,089,489,412.41/97,728.14
  6. Step 6: Final answer
    x = 123,705.31

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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.