Home / 127,885.18-191,760.14-56,776.90

Finding the Fourth Proportional to 127,885.18, 191,760.14 and 56,776.90

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Solution

The fourth proportional to 127,885.18, 191,760.14 and 56,776.90 is: 85,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,885.18 : 191,760.14 = 56,776.90 : x
  2. Step 2: Convert to fraction form
    127,885.18/191,760.14 = 56,776.90/x
  3. Step 3: Cross multiply
    127,885.18x = 191,760.14 × 56,776.90
  4. Step 4: Simplify right side
    127,885.18x = 10,887,546,292.77
  5. Step 5: Solve for x
    x = 10,887,546,292.77/127,885.18
  6. Step 6: Final answer
    x = 85,135.32

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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.