Home / 151,345.14-208,857.74-83,362.40

Finding the Fourth Proportional to 151,345.14, 208,857.74 and 83,362.40

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Solution

The fourth proportional to 151,345.14, 208,857.74 and 83,362.40 is: 115,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,345.14 : 208,857.74 = 83,362.40 : x
  2. Step 2: Convert to fraction form
    151,345.14/208,857.74 = 83,362.40/x
  3. Step 3: Cross multiply
    151,345.14x = 208,857.74 × 83,362.40
  4. Step 4: Simplify right side
    151,345.14x = 17,410,881,003.88
  5. Step 5: Solve for x
    x = 17,410,881,003.88/151,345.14
  6. Step 6: Final answer
    x = 115,040.90

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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.