Home / 130,479.56-195,721.14-36,985.28

Finding the Fourth Proportional to 130,479.56, 195,721.14 and 36,985.28

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Solution

The fourth proportional to 130,479.56, 195,721.14 and 36,985.28 is: 55,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,479.56 : 195,721.14 = 36,985.28 : x
  2. Step 2: Convert to fraction form
    130,479.56/195,721.14 = 36,985.28/x
  3. Step 3: Cross multiply
    130,479.56x = 195,721.14 × 36,985.28
  4. Step 4: Simplify right side
    130,479.56x = 7,238,801,164.82
  5. Step 5: Solve for x
    x = 7,238,801,164.82/130,479.56
  6. Step 6: Final answer
    x = 55,478.43

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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.