Home / 111,628.16-154,044.24-60,639.68

Finding the Fourth Proportional to 111,628.16, 154,044.24 and 60,639.68

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Solution

The fourth proportional to 111,628.16, 154,044.24 and 60,639.68 is: 83,681.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,628.16 : 154,044.24 = 60,639.68 : x
  2. Step 2: Convert to fraction form
    111,628.16/154,044.24 = 60,639.68/x
  3. Step 3: Cross multiply
    111,628.16x = 154,044.24 × 60,639.68
  4. Step 4: Simplify right side
    111,628.16x = 9,341,193,419.44
  5. Step 5: Solve for x
    x = 9,341,193,419.44/111,628.16
  6. Step 6: Final answer
    x = 83,681.33

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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.