Home / 127,830.24-176,418.87-76,859.58

Finding the Fourth Proportional to 127,830.24, 176,418.87 and 76,859.58

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Solution

The fourth proportional to 127,830.24, 176,418.87 and 76,859.58 is: 106,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,830.24 : 176,418.87 = 76,859.58 : x
  2. Step 2: Convert to fraction form
    127,830.24/176,418.87 = 76,859.58/x
  3. Step 3: Cross multiply
    127,830.24x = 176,418.87 × 76,859.58
  4. Step 4: Simplify right side
    127,830.24x = 13,559,480,252.27
  5. Step 5: Solve for x
    x = 13,559,480,252.27/127,830.24
  6. Step 6: Final answer
    x = 106,074.12

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1.5x scale

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.