Home / 104,976,115.20-157,464,172.80-85,828,492.80

Finding the Fourth Proportional to 104,976,115.20, 157,464,172.80 and 85,828,492.80

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Solution

The fourth proportional to 104,976,115.20, 157,464,172.80 and 85,828,492.80 is: 128,742,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,115.20 : 157,464,172.80 = 85,828,492.80 : x
  2. Step 2: Convert to fraction form
    104,976,115.20/157,464,172.80 = 85,828,492.80/x
  3. Step 3: Cross multiply
    104,976,115.20x = 157,464,172.80 × 85,828,492.80
  4. Step 4: Simplify right side
    104,976,115.20x = 13,514,912,621,422,756
  5. Step 5: Solve for x
    x = 13,514,912,621,422,756/104,976,115.20
  6. Step 6: Final answer
    x = 128,742,739.20

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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.