Home / 111,125.42-153,351.53-63,379.56

Finding the Fourth Proportional to 111,125.42, 153,351.53 and 63,379.56

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Solution

The fourth proportional to 111,125.42, 153,351.53 and 63,379.56 is: 87,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,125.42 : 153,351.53 = 63,379.56 : x
  2. Step 2: Convert to fraction form
    111,125.42/153,351.53 = 63,379.56/x
  3. Step 3: Cross multiply
    111,125.42x = 153,351.53 × 63,379.56
  4. Step 4: Simplify right side
    111,125.42x = 9,719,352,992.57
  5. Step 5: Solve for x
    x = 9,719,352,992.57/111,125.42
  6. Step 6: Final answer
    x = 87,462.91

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1.5x scale

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.