Home / 93,190.14-128,639.43-64,911.42

Finding the Fourth Proportional to 93,190.14, 128,639.43 and 64,911.42

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Solution

The fourth proportional to 93,190.14, 128,639.43 and 64,911.42 is: 89,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,190.14 : 128,639.43 = 64,911.42 : x
  2. Step 2: Convert to fraction form
    93,190.14/128,639.43 = 64,911.42/x
  3. Step 3: Cross multiply
    93,190.14x = 128,639.43 × 64,911.42
  4. Step 4: Simplify right side
    93,190.14x = 8,350,168,069.29
  5. Step 5: Solve for x
    x = 8,350,168,069.29/93,190.14
  6. Step 6: Final answer
    x = 89,603.56

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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.