Home / 143,256.04-214,680.31-105,519.35

Finding the Fourth Proportional to 143,256.04, 214,680.31 and 105,519.35

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Solution

The fourth proportional to 143,256.04, 214,680.31 and 105,519.35 is: 158,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,256.04 : 214,680.31 = 105,519.35 : x
  2. Step 2: Convert to fraction form
    143,256.04/214,680.31 = 105,519.35/x
  3. Step 3: Cross multiply
    143,256.04x = 214,680.31 × 105,519.35
  4. Step 4: Simplify right side
    143,256.04x = 22,652,926,769.00
  5. Step 5: Solve for x
    x = 22,652,926,769.00/143,256.04
  6. Step 6: Final answer
    x = 158,128.95

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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.