Home / 130,215.85-195,343.27-47,129.29

Finding the Fourth Proportional to 130,215.85, 195,343.27 and 47,129.29

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Solution

The fourth proportional to 130,215.85, 195,343.27 and 47,129.29 is: 70,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,215.85 : 195,343.27 = 47,129.29 : x
  2. Step 2: Convert to fraction form
    130,215.85/195,343.27 = 47,129.29/x
  3. Step 3: Cross multiply
    130,215.85x = 195,343.27 × 47,129.29
  4. Step 4: Simplify right side
    130,215.85x = 9,206,388,409.02
  5. Step 5: Solve for x
    x = 9,206,388,409.02/130,215.85
  6. Step 6: Final answer
    x = 70,700.98

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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.