Home / 115,620.32-159,581.76-70,288.69

Finding the Fourth Proportional to 115,620.32, 159,581.76 and 70,288.69

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Solution

The fourth proportional to 115,620.32, 159,581.76 and 70,288.69 is: 97,014.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,620.32 : 159,581.76 = 70,288.69 : x
  2. Step 2: Convert to fraction form
    115,620.32/159,581.76 = 70,288.69/x
  3. Step 3: Cross multiply
    115,620.32x = 159,581.76 × 70,288.69
  4. Step 4: Simplify right side
    115,620.32x = 11,216,792,195.76
  5. Step 5: Solve for x
    x = 11,216,792,195.76/115,620.32
  6. Step 6: Final answer
    x = 97,014.03

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1.5x scale

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.