Home / 113,808.81-157,047.75-66,054.45

Finding the Fourth Proportional to 113,808.81, 157,047.75 and 66,054.45

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Solution

The fourth proportional to 113,808.81, 157,047.75 and 66,054.45 is: 91,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,808.81 : 157,047.75 = 66,054.45 : x
  2. Step 2: Convert to fraction form
    113,808.81/157,047.75 = 66,054.45/x
  3. Step 3: Cross multiply
    113,808.81x = 157,047.75 × 66,054.45
  4. Step 4: Simplify right side
    113,808.81x = 10,373,702,749.99
  5. Step 5: Solve for x
    x = 10,373,702,749.99/113,808.81
  6. Step 6: Final answer
    x = 91,150.26

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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.