Home / 104,840.20-157,260.30-81,483.40

Finding the Fourth Proportional to 104,840.20, 157,260.30 and 81,483.40

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Solution

The fourth proportional to 104,840.20, 157,260.30 and 81,483.40 is: 122,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,840.20 : 157,260.30 = 81,483.40 : x
  2. Step 2: Convert to fraction form
    104,840.20/157,260.30 = 81,483.40/x
  3. Step 3: Cross multiply
    104,840.20x = 157,260.30 × 81,483.40
  4. Step 4: Simplify right side
    104,840.20x = 12,814,103,929.02
  5. Step 5: Solve for x
    x = 12,814,103,929.02/104,840.20
  6. Step 6: Final answer
    x = 122,225.10

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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.