Home / 223,213.48-308,036.88-121,239.94

Finding the Fourth Proportional to 223,213.48, 308,036.88 and 121,239.94

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Solution

The fourth proportional to 223,213.48, 308,036.88 and 121,239.94 is: 167,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,213.48 : 308,036.88 = 121,239.94 : x
  2. Step 2: Convert to fraction form
    223,213.48/308,036.88 = 121,239.94/x
  3. Step 3: Cross multiply
    223,213.48x = 308,036.88 × 121,239.94
  4. Step 4: Simplify right side
    223,213.48x = 37,346,372,848.99
  5. Step 5: Solve for x
    x = 37,346,372,848.99/223,213.48
  6. Step 6: Final answer
    x = 167,312.35

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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.