Home / 252,389.07-378,501.68-83,864.16

Finding the Fourth Proportional to 252,389.07, 378,501.68 and 83,864.16

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Solution

The fourth proportional to 252,389.07, 378,501.68 and 83,864.16 is: 125,769.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,389.07 : 378,501.68 = 83,864.16 : x
  2. Step 2: Convert to fraction form
    252,389.07/378,501.68 = 83,864.16/x
  3. Step 3: Cross multiply
    252,389.07x = 378,501.68 × 83,864.16
  4. Step 4: Simplify right side
    252,389.07x = 31,742,725,661.45
  5. Step 5: Solve for x
    x = 31,742,725,661.45/252,389.07
  6. Step 6: Final answer
    x = 125,769.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.