Home / 111,120.48-153,355.76-63,375.84

Finding the Fourth Proportional to 111,120.48, 153,355.76 and 63,375.84

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Solution

The fourth proportional to 111,120.48, 153,355.76 and 63,375.84 is: 87,464.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,120.48 : 153,355.76 = 63,375.84 : x
  2. Step 2: Convert to fraction form
    111,120.48/153,355.76 = 63,375.84/x
  3. Step 3: Cross multiply
    111,120.48x = 153,355.76 × 63,375.84
  4. Step 4: Simplify right side
    111,120.48x = 9,719,050,108.84
  5. Step 5: Solve for x
    x = 9,719,050,108.84/111,120.48
  6. Step 6: Final answer
    x = 87,464.08

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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.