Home / 257,673.03-386,619.71-133,101.51

Finding the Fourth Proportional to 257,673.03, 386,619.71 and 133,101.51

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Solution

The fourth proportional to 257,673.03, 386,619.71 and 133,101.51 is: 199,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,673.03 : 386,619.71 = 133,101.51 : x
  2. Step 2: Convert to fraction form
    257,673.03/386,619.71 = 133,101.51/x
  3. Step 3: Cross multiply
    257,673.03x = 386,619.71 × 133,101.51
  4. Step 4: Simplify right side
    257,673.03x = 51,459,666,531.25
  5. Step 5: Solve for x
    x = 51,459,666,531.25/257,673.03
  6. Step 6: Final answer
    x = 199,709.17

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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.