Home / 115,621.32-159,583.14-70,289.69

Finding the Fourth Proportional to 115,621.32, 159,583.14 and 70,289.69

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Solution

The fourth proportional to 115,621.32, 159,583.14 and 70,289.69 is: 97,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,621.32 : 159,583.14 = 70,289.69 : x
  2. Step 2: Convert to fraction form
    115,621.32/159,583.14 = 70,289.69/x
  3. Step 3: Cross multiply
    115,621.32x = 159,583.14 × 70,289.69
  4. Step 4: Simplify right side
    115,621.32x = 11,217,049,439.83
  5. Step 5: Solve for x
    x = 11,217,049,439.83/115,621.32
  6. Step 6: Final answer
    x = 97,015.41

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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.