Home / 151,289.51-208,775.75-83,305.94

Finding the Fourth Proportional to 151,289.51, 208,775.75 and 83,305.94

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Solution

The fourth proportional to 151,289.51, 208,775.75 and 83,305.94 is: 114,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,289.51 : 208,775.75 = 83,305.94 : x
  2. Step 2: Convert to fraction form
    151,289.51/208,775.75 = 83,305.94/x
  3. Step 3: Cross multiply
    151,289.51x = 208,775.75 × 83,305.94
  4. Step 4: Simplify right side
    151,289.51x = 17,392,258,642.55
  5. Step 5: Solve for x
    x = 17,392,258,642.55/151,289.51
  6. Step 6: Final answer
    x = 114,960.11

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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.