Home / 147,021.04-202,857.78-86,569.62

Finding the Fourth Proportional to 147,021.04, 202,857.78 and 86,569.62

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Solution

The fourth proportional to 147,021.04, 202,857.78 and 86,569.62 is: 119,447.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,021.04 : 202,857.78 = 86,569.62 : x
  2. Step 2: Convert to fraction form
    147,021.04/202,857.78 = 86,569.62/x
  3. Step 3: Cross multiply
    147,021.04x = 202,857.78 × 86,569.62
  4. Step 4: Simplify right side
    147,021.04x = 17,561,320,928.64
  5. Step 5: Solve for x
    x = 17,561,320,928.64/147,021.04
  6. Step 6: Final answer
    x = 119,447.67

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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.