Home / 130,306.05-195,487.74-74,172.60

Finding the Fourth Proportional to 130,306.05, 195,487.74 and 74,172.60

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Solution

The fourth proportional to 130,306.05, 195,487.74 and 74,172.60 is: 111,275.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,306.05 : 195,487.74 = 74,172.60 : x
  2. Step 2: Convert to fraction form
    130,306.05/195,487.74 = 74,172.60/x
  3. Step 3: Cross multiply
    130,306.05x = 195,487.74 × 74,172.60
  4. Step 4: Simplify right side
    130,306.05x = 14,499,833,943.92
  5. Step 5: Solve for x
    x = 14,499,833,943.92/130,306.05
  6. Step 6: Final answer
    x = 111,275.22

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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.