Home / 91,698.12-137,548.15-25,138.25

Finding the Fourth Proportional to 91,698.12, 137,548.15 and 25,138.25

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Solution

The fourth proportional to 91,698.12, 137,548.15 and 25,138.25 is: 37,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,698.12 : 137,548.15 = 25,138.25 : x
  2. Step 2: Convert to fraction form
    91,698.12/137,548.15 = 25,138.25/x
  3. Step 3: Cross multiply
    91,698.12x = 137,548.15 × 25,138.25
  4. Step 4: Simplify right side
    91,698.12x = 3,457,720,320.67
  5. Step 5: Solve for x
    x = 3,457,720,320.67/91,698.12
  6. Step 6: Final answer
    x = 37,707.65

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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.