Home / 115,966.40-173,968.80-49,438.40

Finding the Fourth Proportional to 115,966.40, 173,968.80 and 49,438.40

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Solution

The fourth proportional to 115,966.40, 173,968.80 and 49,438.40 is: 74,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,966.40 : 173,968.80 = 49,438.40 : x
  2. Step 2: Convert to fraction form
    115,966.40/173,968.80 = 49,438.40/x
  3. Step 3: Cross multiply
    115,966.40x = 173,968.80 × 49,438.40
  4. Step 4: Simplify right side
    115,966.40x = 8,600,739,121.92
  5. Step 5: Solve for x
    x = 8,600,739,121.92/115,966.40
  6. Step 6: Final answer
    x = 74,165.79

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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.