Home / 115,606.31-159,518.16-70,260.08

Finding the Fourth Proportional to 115,606.31, 159,518.16 and 70,260.08

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Solution

The fourth proportional to 115,606.31, 159,518.16 and 70,260.08 is: 96,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,606.31 : 159,518.16 = 70,260.08 : x
  2. Step 2: Convert to fraction form
    115,606.31/159,518.16 = 70,260.08/x
  3. Step 3: Cross multiply
    115,606.31x = 159,518.16 × 70,260.08
  4. Step 4: Simplify right side
    115,606.31x = 11,207,757,885.46
  5. Step 5: Solve for x
    x = 11,207,757,885.46/115,606.31
  6. Step 6: Final answer
    x = 96,947.64

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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.