Home / 128,186.25-176,900.58-70,829.27

Finding the Fourth Proportional to 128,186.25, 176,900.58 and 70,829.27

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Solution

The fourth proportional to 128,186.25, 176,900.58 and 70,829.27 is: 97,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,186.25 : 176,900.58 = 70,829.27 : x
  2. Step 2: Convert to fraction form
    128,186.25/176,900.58 = 70,829.27/x
  3. Step 3: Cross multiply
    128,186.25x = 176,900.58 × 70,829.27
  4. Step 4: Simplify right side
    128,186.25x = 12,529,738,059.47
  5. Step 5: Solve for x
    x = 12,529,738,059.47/128,186.25
  6. Step 6: Final answer
    x = 97,746.35

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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.