Home / 130,165.38-195,024.96-87,390.68

Finding the Fourth Proportional to 130,165.38, 195,024.96 and 87,390.68

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Solution

The fourth proportional to 130,165.38, 195,024.96 and 87,390.68 is: 130,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,165.38 : 195,024.96 = 87,390.68 : x
  2. Step 2: Convert to fraction form
    130,165.38/195,024.96 = 87,390.68/x
  3. Step 3: Cross multiply
    130,165.38x = 195,024.96 × 87,390.68
  4. Step 4: Simplify right side
    130,165.38x = 17,043,362,896.25
  5. Step 5: Solve for x
    x = 17,043,362,896.25/130,165.38
  6. Step 6: Final answer
    x = 130,936.22

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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.