Home / 127,345.12-191,055.84-51,404.56

Finding the Fourth Proportional to 127,345.12, 191,055.84 and 51,404.56

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Solution

The fourth proportional to 127,345.12, 191,055.84 and 51,404.56 is: 77,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,345.12 : 191,055.84 = 51,404.56 : x
  2. Step 2: Convert to fraction form
    127,345.12/191,055.84 = 51,404.56/x
  3. Step 3: Cross multiply
    127,345.12x = 191,055.84 × 51,404.56
  4. Step 4: Simplify right side
    127,345.12x = 9,821,141,390.63
  5. Step 5: Solve for x
    x = 9,821,141,390.63/127,345.12
  6. Step 6: Final answer
    x = 77,122.24

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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.