Home / 127,784.64-191,663.61-56,708.49

Finding the Fourth Proportional to 127,784.64, 191,663.61 and 56,708.49

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Solution

The fourth proportional to 127,784.64, 191,663.61 and 56,708.49 is: 85,056.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,784.64 : 191,663.61 = 56,708.49 : x
  2. Step 2: Convert to fraction form
    127,784.64/191,663.61 = 56,708.49/x
  3. Step 3: Cross multiply
    127,784.64x = 191,663.61 × 56,708.49
  4. Step 4: Simplify right side
    127,784.64x = 10,868,953,911.05
  5. Step 5: Solve for x
    x = 10,868,953,911.05/127,784.64
  6. Step 6: Final answer
    x = 85,056.81

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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.