Home / 111,472.26-153,884.61-70,656.75

Finding the Fourth Proportional to 111,472.26, 153,884.61 and 70,656.75

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Solution

The fourth proportional to 111,472.26, 153,884.61 and 70,656.75 is: 97,539.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,472.26 : 153,884.61 = 70,656.75 : x
  2. Step 2: Convert to fraction form
    111,472.26/153,884.61 = 70,656.75/x
  3. Step 3: Cross multiply
    111,472.26x = 153,884.61 × 70,656.75
  4. Step 4: Simplify right side
    111,472.26x = 10,872,986,417.62
  5. Step 5: Solve for x
    x = 10,872,986,417.62/111,472.26
  6. Step 6: Final answer
    x = 97,539.84

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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.