Home / 130,539.70-195,655.95-68,178.10

Finding the Fourth Proportional to 130,539.70, 195,655.95 and 68,178.10

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Solution

The fourth proportional to 130,539.70, 195,655.95 and 68,178.10 is: 102,186.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,539.70 : 195,655.95 = 68,178.10 : x
  2. Step 2: Convert to fraction form
    130,539.70/195,655.95 = 68,178.10/x
  3. Step 3: Cross multiply
    130,539.70x = 195,655.95 × 68,178.10
  4. Step 4: Simplify right side
    130,539.70x = 13,339,450,924.70
  5. Step 5: Solve for x
    x = 13,339,450,924.70/130,539.70
  6. Step 6: Final answer
    x = 102,186.93

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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.