Home / 128,010.24-191,812.32-92,784.96

Finding the Fourth Proportional to 128,010.24, 191,812.32 and 92,784.96

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Solution

The fourth proportional to 128,010.24, 191,812.32 and 92,784.96 is: 139,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,010.24 : 191,812.32 = 92,784.96 : x
  2. Step 2: Convert to fraction form
    128,010.24/191,812.32 = 92,784.96/x
  3. Step 3: Cross multiply
    128,010.24x = 191,812.32 × 92,784.96
  4. Step 4: Simplify right side
    128,010.24x = 17,797,298,438.71
  5. Step 5: Solve for x
    x = 17,797,298,438.71/128,010.24
  6. Step 6: Final answer
    x = 139,030.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.