Home / 168,631.76-232,604.82-128,257.01

Finding the Fourth Proportional to 168,631.76, 232,604.82 and 128,257.01

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Solution

The fourth proportional to 168,631.76, 232,604.82 and 128,257.01 is: 176,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,631.76 : 232,604.82 = 128,257.01 : x
  2. Step 2: Convert to fraction form
    168,631.76/232,604.82 = 128,257.01/x
  3. Step 3: Cross multiply
    168,631.76x = 232,604.82 × 128,257.01
  4. Step 4: Simplify right side
    168,631.76x = 29,833,197,561.76
  5. Step 5: Solve for x
    x = 29,833,197,561.76/168,631.76
  6. Step 6: Final answer
    x = 176,913.28

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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.