Home / 223,099.90-307,878.26-121,125.50

Finding the Fourth Proportional to 223,099.90, 307,878.26 and 121,125.50

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Solution

The fourth proportional to 223,099.90, 307,878.26 and 121,125.50 is: 167,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,099.90 : 307,878.26 = 121,125.50 : x
  2. Step 2: Convert to fraction form
    223,099.90/307,878.26 = 121,125.50/x
  3. Step 3: Cross multiply
    223,099.90x = 307,878.26 × 121,125.50
  4. Step 4: Simplify right side
    223,099.90x = 37,291,908,181.63
  5. Step 5: Solve for x
    x = 37,291,908,181.63/223,099.90
  6. Step 6: Final answer
    x = 167,153.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.