Home / 111,148.75-153,370.93-63,399.25

Finding the Fourth Proportional to 111,148.75, 153,370.93 and 63,399.25

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Solution

The fourth proportional to 111,148.75, 153,370.93 and 63,399.25 is: 87,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,148.75 : 153,370.93 = 63,399.25 : x
  2. Step 2: Convert to fraction form
    111,148.75/153,370.93 = 63,399.25/x
  3. Step 3: Cross multiply
    111,148.75x = 153,370.93 × 63,399.25
  4. Step 4: Simplify right side
    111,148.75x = 9,723,601,933.80
  5. Step 5: Solve for x
    x = 9,723,601,933.80/111,148.75
  6. Step 6: Final answer
    x = 87,482.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.