Home / 128,862.15-193,215.52-57,771.91

Finding the Fourth Proportional to 128,862.15, 193,215.52 and 57,771.91

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Solution

The fourth proportional to 128,862.15, 193,215.52 and 57,771.91 is: 86,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,862.15 : 193,215.52 = 57,771.91 : x
  2. Step 2: Convert to fraction form
    128,862.15/193,215.52 = 57,771.91/x
  3. Step 3: Cross multiply
    128,862.15x = 193,215.52 × 57,771.91
  4. Step 4: Simplify right side
    128,862.15x = 11,162,429,632.04
  5. Step 5: Solve for x
    x = 11,162,429,632.04/128,862.15
  6. Step 6: Final answer
    x = 86,623.03

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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.