Home / 104,861.36-144,582.90-85,670.04

Finding the Fourth Proportional to 104,861.36, 144,582.90 and 85,670.04

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Solution

The fourth proportional to 104,861.36, 144,582.90 and 85,670.04 is: 118,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,861.36 : 144,582.90 = 85,670.04 : x
  2. Step 2: Convert to fraction form
    104,861.36/144,582.90 = 85,670.04/x
  3. Step 3: Cross multiply
    104,861.36x = 144,582.90 × 85,670.04
  4. Step 4: Simplify right side
    104,861.36x = 12,386,422,826.32
  5. Step 5: Solve for x
    x = 12,386,422,826.32/104,861.36
  6. Step 6: Final answer
    x = 118,121.90

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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.