Home / 142,405.24-213,421.00-104,789.18

Finding the Fourth Proportional to 142,405.24, 213,421.00 and 104,789.18

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Solution

The fourth proportional to 142,405.24, 213,421.00 and 104,789.18 is: 157,046.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,405.24 : 213,421.00 = 104,789.18 : x
  2. Step 2: Convert to fraction form
    142,405.24/213,421.00 = 104,789.18/x
  3. Step 3: Cross multiply
    142,405.24x = 213,421.00 × 104,789.18
  4. Step 4: Simplify right side
    142,405.24x = 22,364,210,255.70
  5. Step 5: Solve for x
    x = 22,364,210,255.70/142,405.24
  6. Step 6: Final answer
    x = 157,046.26

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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.