Home / 130,920.64-196,388.24-37,428.80

Finding the Fourth Proportional to 130,920.64, 196,388.24 and 37,428.80

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Solution

The fourth proportional to 130,920.64, 196,388.24 and 37,428.80 is: 56,145.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,920.64 : 196,388.24 = 37,428.80 : x
  2. Step 2: Convert to fraction form
    130,920.64/196,388.24 = 37,428.80/x
  3. Step 3: Cross multiply
    130,920.64x = 196,388.24 × 37,428.80
  4. Step 4: Simplify right side
    130,920.64x = 7,350,576,157.31
  5. Step 5: Solve for x
    x = 7,350,576,157.31/130,920.64
  6. Step 6: Final answer
    x = 56,145.28

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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.