Home / 176,131.83-243,063.30-103,515.22

Finding the Fourth Proportional to 176,131.83, 243,063.30 and 103,515.22

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Solution

The fourth proportional to 176,131.83, 243,063.30 and 103,515.22 is: 142,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,131.83 : 243,063.30 = 103,515.22 : x
  2. Step 2: Convert to fraction form
    176,131.83/243,063.30 = 103,515.22/x
  3. Step 3: Cross multiply
    176,131.83x = 243,063.30 × 103,515.22
  4. Step 4: Simplify right side
    176,131.83x = 25,160,750,973.43
  5. Step 5: Solve for x
    x = 25,160,750,973.43/176,131.83
  6. Step 6: Final answer
    x = 142,851.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.