Home / 127,845.44-176,409.60-77,534.72

Finding the Fourth Proportional to 127,845.44, 176,409.60 and 77,534.72

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Solution

The fourth proportional to 127,845.44, 176,409.60 and 77,534.72 is: 106,987.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,845.44 : 176,409.60 = 77,534.72 : x
  2. Step 2: Convert to fraction form
    127,845.44/176,409.60 = 77,534.72/x
  3. Step 3: Cross multiply
    127,845.44x = 176,409.60 × 77,534.72
  4. Step 4: Simplify right side
    127,845.44x = 13,677,868,941.31
  5. Step 5: Solve for x
    x = 13,677,868,941.31/127,845.44
  6. Step 6: Final answer
    x = 106,987.54

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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.