Home / 281,032.49-421,502.56-121,065.03

Finding the Fourth Proportional to 281,032.49, 421,502.56 and 121,065.03

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Solution

The fourth proportional to 281,032.49, 421,502.56 and 121,065.03 is: 181,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,032.49 : 421,502.56 = 121,065.03 : x
  2. Step 2: Convert to fraction form
    281,032.49/421,502.56 = 121,065.03/x
  3. Step 3: Cross multiply
    281,032.49x = 421,502.56 × 121,065.03
  4. Step 4: Simplify right side
    281,032.49x = 51,029,219,768.81
  5. Step 5: Solve for x
    x = 51,029,219,768.81/281,032.49
  6. Step 6: Final answer
    x = 181,577.65

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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.