Home / 115,427.80-173,141.70-102,208.60

Finding the Fourth Proportional to 115,427.80, 173,141.70 and 102,208.60

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Solution

The fourth proportional to 115,427.80, 173,141.70 and 102,208.60 is: 153,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,427.80 : 173,141.70 = 102,208.60 : x
  2. Step 2: Convert to fraction form
    115,427.80/173,141.70 = 102,208.60/x
  3. Step 3: Cross multiply
    115,427.80x = 173,141.70 × 102,208.60
  4. Step 4: Simplify right side
    115,427.80x = 17,696,570,758.62
  5. Step 5: Solve for x
    x = 17,696,570,758.62/115,427.80
  6. Step 6: Final answer
    x = 153,312.90

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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.