Home / 236,141.50-325,875.48-128,709.38

Finding the Fourth Proportional to 236,141.50, 325,875.48 and 128,709.38

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Solution

The fourth proportional to 236,141.50, 325,875.48 and 128,709.38 is: 177,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,141.50 : 325,875.48 = 128,709.38 : x
  2. Step 2: Convert to fraction form
    236,141.50/325,875.48 = 128,709.38/x
  3. Step 3: Cross multiply
    236,141.50x = 325,875.48 × 128,709.38
  4. Step 4: Simplify right side
    236,141.50x = 41,943,230,988.00
  5. Step 5: Solve for x
    x = 41,943,230,988.00/236,141.50
  6. Step 6: Final answer
    x = 177,619.06

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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.