Home / 111,117.09-153,344.21-63,369.41

Finding the Fourth Proportional to 111,117.09, 153,344.21 and 63,369.41

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Solution

The fourth proportional to 111,117.09, 153,344.21 and 63,369.41 is: 87,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,117.09 : 153,344.21 = 63,369.41 : x
  2. Step 2: Convert to fraction form
    111,117.09/153,344.21 = 63,369.41/x
  3. Step 3: Cross multiply
    111,117.09x = 153,344.21 × 63,369.41
  4. Step 4: Simplify right side
    111,117.09x = 9,717,331,031.05
  5. Step 5: Solve for x
    x = 9,717,331,031.05/111,117.09
  6. Step 6: Final answer
    x = 87,451.27

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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.