Home / 127,977.94-176,579.49-77,667.22

Finding the Fourth Proportional to 127,977.94, 176,579.49 and 77,667.22

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Solution

The fourth proportional to 127,977.94, 176,579.49 and 77,667.22 is: 107,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,977.94 : 176,579.49 = 77,667.22 : x
  2. Step 2: Convert to fraction form
    127,977.94/176,579.49 = 77,667.22/x
  3. Step 3: Cross multiply
    127,977.94x = 176,579.49 × 77,667.22
  4. Step 4: Simplify right side
    127,977.94x = 13,714,438,097.32
  5. Step 5: Solve for x
    x = 13,714,438,097.32/127,977.94
  6. Step 6: Final answer
    x = 107,162.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.