Home / 127,638.60-176,143.56-70,277.64

Finding the Fourth Proportional to 127,638.60, 176,143.56 and 70,277.64

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Solution

The fourth proportional to 127,638.60, 176,143.56 and 70,277.64 is: 96,984.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,638.60 : 176,143.56 = 70,277.64 : x
  2. Step 2: Convert to fraction form
    127,638.60/176,143.56 = 70,277.64/x
  3. Step 3: Cross multiply
    127,638.60x = 176,143.56 × 70,277.64
  4. Step 4: Simplify right side
    127,638.60x = 12,378,953,698.00
  5. Step 5: Solve for x
    x = 12,378,953,698.00/127,638.60
  6. Step 6: Final answer
    x = 96,984.41

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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.