Home / 111,079.96-153,240.90-70,771.84

Finding the Fourth Proportional to 111,079.96, 153,240.90 and 70,771.84

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Solution

The fourth proportional to 111,079.96, 153,240.90 and 70,771.84 is: 97,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,079.96 : 153,240.90 = 70,771.84 : x
  2. Step 2: Convert to fraction form
    111,079.96/153,240.90 = 70,771.84/x
  3. Step 3: Cross multiply
    111,079.96x = 153,240.90 × 70,771.84
  4. Step 4: Simplify right side
    111,079.96x = 10,845,140,456.26
  5. Step 5: Solve for x
    x = 10,845,140,456.26/111,079.96
  6. Step 6: Final answer
    x = 97,633.64

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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.