Home / 143,223.63-214,631.73-105,486.93

Finding the Fourth Proportional to 143,223.63, 214,631.73 and 105,486.93

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Solution

The fourth proportional to 143,223.63, 214,631.73 and 105,486.93 is: 158,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,223.63 : 214,631.73 = 105,486.93 : x
  2. Step 2: Convert to fraction form
    143,223.63/214,631.73 = 105,486.93/x
  3. Step 3: Cross multiply
    143,223.63x = 214,631.73 × 105,486.93
  4. Step 4: Simplify right side
    143,223.63x = 22,640,842,278.29
  5. Step 5: Solve for x
    x = 22,640,842,278.29/143,223.63
  6. Step 6: Final answer
    x = 158,080.36

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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.