Home / 115,672.48-173,662.32-74,139.04

Finding the Fourth Proportional to 115,672.48, 173,662.32 and 74,139.04

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Solution

The fourth proportional to 115,672.48, 173,662.32 and 74,139.04 is: 111,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,672.48 : 173,662.32 = 74,139.04 : x
  2. Step 2: Convert to fraction form
    115,672.48/173,662.32 = 74,139.04/x
  3. Step 3: Cross multiply
    115,672.48x = 173,662.32 × 74,139.04
  4. Step 4: Simplify right side
    115,672.48x = 12,875,157,688.97
  5. Step 5: Solve for x
    x = 12,875,157,688.97/115,672.48
  6. Step 6: Final answer
    x = 111,307.01

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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.