Home / 130,115.24-195,172.86-31,619.24

Finding the Fourth Proportional to 130,115.24, 195,172.86 and 31,619.24

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Solution

The fourth proportional to 130,115.24, 195,172.86 and 31,619.24 is: 47,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,115.24 : 195,172.86 = 31,619.24 : x
  2. Step 2: Convert to fraction form
    130,115.24/195,172.86 = 31,619.24/x
  3. Step 3: Cross multiply
    130,115.24x = 195,172.86 × 31,619.24
  4. Step 4: Simplify right side
    130,115.24x = 6,171,217,501.83
  5. Step 5: Solve for x
    x = 6,171,217,501.83/130,115.24
  6. Step 6: Final answer
    x = 47,428.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.