Home / 192,148.96-265,089.36-128,385.76

Finding the Fourth Proportional to 192,148.96, 265,089.36 and 128,385.76

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Solution

The fourth proportional to 192,148.96, 265,089.36 and 128,385.76 is: 177,121.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,148.96 : 265,089.36 = 128,385.76 : x
  2. Step 2: Convert to fraction form
    192,148.96/265,089.36 = 128,385.76/x
  3. Step 3: Cross multiply
    192,148.96x = 265,089.36 × 128,385.76
  4. Step 4: Simplify right side
    192,148.96x = 34,033,698,951.51
  5. Step 5: Solve for x
    x = 34,033,698,951.51/192,148.96
  6. Step 6: Final answer
    x = 177,121.43

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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.