Home / 157,181.99-235,640.72-68,368.60

Finding the Fourth Proportional to 157,181.99, 235,640.72 and 68,368.60

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Solution

The fourth proportional to 157,181.99, 235,640.72 and 68,368.60 is: 102,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,181.99 : 235,640.72 = 68,368.60 : x
  2. Step 2: Convert to fraction form
    157,181.99/235,640.72 = 68,368.60/x
  3. Step 3: Cross multiply
    157,181.99x = 235,640.72 × 68,368.60
  4. Step 4: Simplify right side
    157,181.99x = 16,110,426,129.39
  5. Step 5: Solve for x
    x = 16,110,426,129.39/157,181.99
  6. Step 6: Final answer
    x = 102,495.37

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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.