Home / 130,128.51-195,212.21-41,384.91

Finding the Fourth Proportional to 130,128.51, 195,212.21 and 41,384.91

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Solution

The fourth proportional to 130,128.51, 195,212.21 and 41,384.91 is: 62,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,128.51 : 195,212.21 = 41,384.91 : x
  2. Step 2: Convert to fraction form
    130,128.51/195,212.21 = 41,384.91/x
  3. Step 3: Cross multiply
    130,128.51x = 195,212.21 × 41,384.91
  4. Step 4: Simplify right side
    130,128.51x = 8,078,839,534.83
  5. Step 5: Solve for x
    x = 8,078,839,534.83/130,128.51
  6. Step 6: Final answer
    x = 62,083.55

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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.