Home / 111,326.24-153,573.73-70,421.44

Finding the Fourth Proportional to 111,326.24, 153,573.73 and 70,421.44

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Solution

The fourth proportional to 111,326.24, 153,573.73 and 70,421.44 is: 97,145.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,326.24 : 153,573.73 = 70,421.44 : x
  2. Step 2: Convert to fraction form
    111,326.24/153,573.73 = 70,421.44/x
  3. Step 3: Cross multiply
    111,326.24x = 153,573.73 × 70,421.44
  4. Step 4: Simplify right side
    111,326.24x = 10,814,883,212.77
  5. Step 5: Solve for x
    x = 10,814,883,212.77/111,326.24
  6. Step 6: Final answer
    x = 97,145.86

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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.