Home / 130,013.40-195,020.10-36,519.15

Finding the Fourth Proportional to 130,013.40, 195,020.10 and 36,519.15

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Solution

The fourth proportional to 130,013.40, 195,020.10 and 36,519.15 is: 54,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,013.40 : 195,020.10 = 36,519.15 : x
  2. Step 2: Convert to fraction form
    130,013.40/195,020.10 = 36,519.15/x
  3. Step 3: Cross multiply
    130,013.40x = 195,020.10 × 36,519.15
  4. Step 4: Simplify right side
    130,013.40x = 7,121,968,284.92
  5. Step 5: Solve for x
    x = 7,121,968,284.92/130,013.40
  6. Step 6: Final answer
    x = 54,778.73

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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.