Home / 148,782.16-205,317.48-81,709.84

Finding the Fourth Proportional to 148,782.16, 205,317.48 and 81,709.84

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Solution

The fourth proportional to 148,782.16, 205,317.48 and 81,709.84 is: 112,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,782.16 : 205,317.48 = 81,709.84 : x
  2. Step 2: Convert to fraction form
    148,782.16/205,317.48 = 81,709.84/x
  3. Step 3: Cross multiply
    148,782.16x = 205,317.48 × 81,709.84
  4. Step 4: Simplify right side
    148,782.16x = 16,776,458,440.00
  5. Step 5: Solve for x
    x = 16,776,458,440.00/148,782.16
  6. Step 6: Final answer
    x = 112,758.54

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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.