Home / 134,605.10-201,664.65-78,399.20

Finding the Fourth Proportional to 134,605.10, 201,664.65 and 78,399.20

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Solution

The fourth proportional to 134,605.10, 201,664.65 and 78,399.20 is: 117,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,605.10 : 201,664.65 = 78,399.20 : x
  2. Step 2: Convert to fraction form
    134,605.10/201,664.65 = 78,399.20/x
  3. Step 3: Cross multiply
    134,605.10x = 201,664.65 × 78,399.20
  4. Step 4: Simplify right side
    134,605.10x = 15,810,347,228.28
  5. Step 5: Solve for x
    x = 15,810,347,228.28/134,605.10
  6. Step 6: Final answer
    x = 117,457.27

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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.