Home / 114,826.81-172,243.46-31,720.81

Finding the Fourth Proportional to 114,826.81, 172,243.46 and 31,720.81

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Solution

The fourth proportional to 114,826.81, 172,243.46 and 31,720.81 is: 47,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,826.81 : 172,243.46 = 31,720.81 : x
  2. Step 2: Convert to fraction form
    114,826.81/172,243.46 = 31,720.81/x
  3. Step 3: Cross multiply
    114,826.81x = 172,243.46 × 31,720.81
  4. Step 4: Simplify right side
    114,826.81x = 5,463,702,068.40
  5. Step 5: Solve for x
    x = 5,463,702,068.40/114,826.81
  6. Step 6: Final answer
    x = 47,582.11

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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.