Home / 157,668.40-236,429.70-68,876.20

Finding the Fourth Proportional to 157,668.40, 236,429.70 and 68,876.20

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Solution

The fourth proportional to 157,668.40, 236,429.70 and 68,876.20 is: 103,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,668.40 : 236,429.70 = 68,876.20 : x
  2. Step 2: Convert to fraction form
    157,668.40/236,429.70 = 68,876.20/x
  3. Step 3: Cross multiply
    157,668.40x = 236,429.70 × 68,876.20
  4. Step 4: Simplify right side
    157,668.40x = 16,284,379,303.14
  5. Step 5: Solve for x
    x = 16,284,379,303.14/157,668.40
  6. Step 6: Final answer
    x = 103,282.45

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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.