Home / 116,756.32-161,124.96-66,455.68

Finding the Fourth Proportional to 116,756.32, 161,124.96 and 66,455.68

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Solution

The fourth proportional to 116,756.32, 161,124.96 and 66,455.68 is: 91,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,756.32 : 161,124.96 = 66,455.68 : x
  2. Step 2: Convert to fraction form
    116,756.32/161,124.96 = 66,455.68/x
  3. Step 3: Cross multiply
    116,756.32x = 161,124.96 × 66,455.68
  4. Step 4: Simplify right side
    116,756.32x = 10,707,668,781.77
  5. Step 5: Solve for x
    x = 10,707,668,781.77/116,756.32
  6. Step 6: Final answer
    x = 91,709.54

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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.