Home / 113,715.90-170,683.20-57,619.35

Finding the Fourth Proportional to 113,715.90, 170,683.20 and 57,619.35

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Solution

The fourth proportional to 113,715.90, 170,683.20 and 57,619.35 is: 86,484.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,715.90 : 170,683.20 = 57,619.35 : x
  2. Step 2: Convert to fraction form
    113,715.90/170,683.20 = 57,619.35/x
  3. Step 3: Cross multiply
    113,715.90x = 170,683.20 × 57,619.35
  4. Step 4: Simplify right side
    113,715.90x = 9,834,655,039.92
  5. Step 5: Solve for x
    x = 9,834,655,039.92/113,715.90
  6. Step 6: Final answer
    x = 86,484.43

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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.