Home / 113,428.11-170,247.42-57,307.64

Finding the Fourth Proportional to 113,428.11, 170,247.42 and 57,307.64

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Solution

The fourth proportional to 113,428.11, 170,247.42 and 57,307.64 is: 86,014.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,428.11 : 170,247.42 = 57,307.64 : x
  2. Step 2: Convert to fraction form
    113,428.11/170,247.42 = 57,307.64/x
  3. Step 3: Cross multiply
    113,428.11x = 170,247.42 × 57,307.64
  4. Step 4: Simplify right side
    113,428.11x = 9,756,477,962.69
  5. Step 5: Solve for x
    x = 9,756,477,962.69/113,428.11
  6. Step 6: Final answer
    x = 86,014.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.