Home / 127,686.70-191,561.10-38,942.02

Finding the Fourth Proportional to 127,686.70, 191,561.10 and 38,942.02

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Solution

The fourth proportional to 127,686.70, 191,561.10 and 38,942.02 is: 58,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,686.70 : 191,561.10 = 38,942.02 : x
  2. Step 2: Convert to fraction form
    127,686.70/191,561.10 = 38,942.02/x
  3. Step 3: Cross multiply
    127,686.70x = 191,561.10 × 38,942.02
  4. Step 4: Simplify right side
    127,686.70x = 7,459,776,187.42
  5. Step 5: Solve for x
    x = 7,459,776,187.42/127,686.70
  6. Step 6: Final answer
    x = 58,422.50

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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.