Home / 128,932.83-193,394.95-53,028.74

Finding the Fourth Proportional to 128,932.83, 193,394.95 and 53,028.74

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Solution

The fourth proportional to 128,932.83, 193,394.95 and 53,028.74 is: 79,541.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,932.83 : 193,394.95 = 53,028.74 : x
  2. Step 2: Convert to fraction form
    128,932.83/193,394.95 = 53,028.74/x
  3. Step 3: Cross multiply
    128,932.83x = 193,394.95 × 53,028.74
  4. Step 4: Simplify right side
    128,932.83x = 10,255,490,871.78
  5. Step 5: Solve for x
    x = 10,255,490,871.78/128,932.83
  6. Step 6: Final answer
    x = 79,541.35

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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.