Home / 153,131.26-229,743.46-78,303.94

Finding the Fourth Proportional to 153,131.26, 229,743.46 and 78,303.94

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Solution

The fourth proportional to 153,131.26, 229,743.46 and 78,303.94 is: 117,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,131.26 : 229,743.46 = 78,303.94 : x
  2. Step 2: Convert to fraction form
    153,131.26/229,743.46 = 78,303.94/x
  3. Step 3: Cross multiply
    153,131.26x = 229,743.46 × 78,303.94
  4. Step 4: Simplify right side
    153,131.26x = 17,989,818,107.23
  5. Step 5: Solve for x
    x = 17,989,818,107.23/153,131.26
  6. Step 6: Final answer
    x = 117,479.72

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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.