Home / 130,311.51-195,495.98-74,178.06

Finding the Fourth Proportional to 130,311.51, 195,495.98 and 74,178.06

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Solution

The fourth proportional to 130,311.51, 195,495.98 and 74,178.06 is: 111,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,311.51 : 195,495.98 = 74,178.06 : x
  2. Step 2: Convert to fraction form
    130,311.51/195,495.98 = 74,178.06/x
  3. Step 3: Cross multiply
    130,311.51x = 195,495.98 × 74,178.06
  4. Step 4: Simplify right side
    130,311.51x = 14,501,512,163.31
  5. Step 5: Solve for x
    x = 14,501,512,163.31/130,311.51
  6. Step 6: Final answer
    x = 111,283.43

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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.