Home / 93,110.16-128,621.61-89,653.63

Finding the Fourth Proportional to 93,110.16, 128,621.61 and 89,653.63

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Solution

The fourth proportional to 93,110.16, 128,621.61 and 89,653.63 is: 123,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,110.16 : 128,621.61 = 89,653.63 : x
  2. Step 2: Convert to fraction form
    93,110.16/128,621.61 = 89,653.63/x
  3. Step 3: Cross multiply
    93,110.16x = 128,621.61 × 89,653.63
  4. Step 4: Simplify right side
    93,110.16x = 11,531,394,232.94
  5. Step 5: Solve for x
    x = 11,531,394,232.94/93,110.16
  6. Step 6: Final answer
    x = 123,846.79

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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.