Home / 115,858.28-159,856.74-70,535.72

Finding the Fourth Proportional to 115,858.28, 159,856.74 and 70,535.72

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Solution

The fourth proportional to 115,858.28, 159,856.74 and 70,535.72 is: 97,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,858.28 : 159,856.74 = 70,535.72 : x
  2. Step 2: Convert to fraction form
    115,858.28/159,856.74 = 70,535.72/x
  3. Step 3: Cross multiply
    115,858.28x = 159,856.74 × 70,535.72
  4. Step 4: Simplify right side
    115,858.28x = 11,275,610,252.75
  5. Step 5: Solve for x
    x = 11,275,610,252.75/115,858.28
  6. Step 6: Final answer
    x = 97,322.44

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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.