Home / 130,622.66-195,989.47-71,389.13

Finding the Fourth Proportional to 130,622.66, 195,989.47 and 71,389.13

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Solution

The fourth proportional to 130,622.66, 195,989.47 and 71,389.13 is: 107,114.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,622.66 : 195,989.47 = 71,389.13 : x
  2. Step 2: Convert to fraction form
    130,622.66/195,989.47 = 71,389.13/x
  3. Step 3: Cross multiply
    130,622.66x = 195,989.47 × 71,389.13
  4. Step 4: Simplify right side
    130,622.66x = 13,991,517,752.46
  5. Step 5: Solve for x
    x = 13,991,517,752.46/130,622.66
  6. Step 6: Final answer
    x = 107,114.02

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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.