Home / 120,335.25-180,395.67-57,116.37

Finding the Fourth Proportional to 120,335.25, 180,395.67 and 57,116.37

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Solution

The fourth proportional to 120,335.25, 180,395.67 and 57,116.37 is: 85,623.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,335.25 : 180,395.67 = 57,116.37 : x
  2. Step 2: Convert to fraction form
    120,335.25/180,395.67 = 57,116.37/x
  3. Step 3: Cross multiply
    120,335.25x = 180,395.67 × 57,116.37
  4. Step 4: Simplify right side
    120,335.25x = 10,303,545,834.12
  5. Step 5: Solve for x
    x = 10,303,545,834.12/120,335.25
  6. Step 6: Final answer
    x = 85,623.67

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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.