Home / 115,638.23-173,468.88-31,399.76

Finding the Fourth Proportional to 115,638.23, 173,468.88 and 31,399.76

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Solution

The fourth proportional to 115,638.23, 173,468.88 and 31,399.76 is: 47,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,638.23 : 173,468.88 = 31,399.76 : x
  2. Step 2: Convert to fraction form
    115,638.23/173,468.88 = 31,399.76/x
  3. Step 3: Cross multiply
    115,638.23x = 173,468.88 × 31,399.76
  4. Step 4: Simplify right side
    115,638.23x = 5,446,880,332.12
  5. Step 5: Solve for x
    x = 5,446,880,332.12/115,638.23
  6. Step 6: Final answer
    x = 47,102.77

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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.