Home / 223,308.18-308,166.43-121,333.91

Finding the Fourth Proportional to 223,308.18, 308,166.43 and 121,333.91

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Solution

The fourth proportional to 223,308.18, 308,166.43 and 121,333.91 is: 167,441.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,308.18 : 308,166.43 = 121,333.91 : x
  2. Step 2: Convert to fraction form
    223,308.18/308,166.43 = 121,333.91/x
  3. Step 3: Cross multiply
    223,308.18x = 308,166.43 × 121,333.91
  4. Step 4: Simplify right side
    223,308.18x = 37,391,036,341.81
  5. Step 5: Solve for x
    x = 37,391,036,341.81/223,308.18
  6. Step 6: Final answer
    x = 167,441.41

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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.