Home / 127,628.21-191,442.42-52,666.02

Finding the Fourth Proportional to 127,628.21, 191,442.42 and 52,666.02

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Solution

The fourth proportional to 127,628.21, 191,442.42 and 52,666.02 is: 78,999.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,628.21 : 191,442.42 = 52,666.02 : x
  2. Step 2: Convert to fraction form
    127,628.21/191,442.42 = 52,666.02/x
  3. Step 3: Cross multiply
    127,628.21x = 191,442.42 × 52,666.02
  4. Step 4: Simplify right side
    127,628.21x = 10,082,510,320.57
  5. Step 5: Solve for x
    x = 10,082,510,320.57/127,628.21
  6. Step 6: Final answer
    x = 78,999.07

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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.