Home / 110,736.90-152,763.76-72,479.60

Finding the Fourth Proportional to 110,736.90, 152,763.76 and 72,479.60

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Solution

The fourth proportional to 110,736.90, 152,763.76 and 72,479.60 is: 99,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,736.90 : 152,763.76 = 72,479.60 : x
  2. Step 2: Convert to fraction form
    110,736.90/152,763.76 = 72,479.60/x
  3. Step 3: Cross multiply
    110,736.90x = 152,763.76 × 72,479.60
  4. Step 4: Simplify right side
    110,736.90x = 11,072,256,219.30
  5. Step 5: Solve for x
    x = 11,072,256,219.30/110,736.90
  6. Step 6: Final answer
    x = 99,987.06

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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.