Home / 124,620.31-171,995.77-79,251.00

Finding the Fourth Proportional to 124,620.31, 171,995.77 and 79,251.00

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Solution

The fourth proportional to 124,620.31, 171,995.77 and 79,251.00 is: 109,378.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,620.31 : 171,995.77 = 79,251.00 : x
  2. Step 2: Convert to fraction form
    124,620.31/171,995.77 = 79,251.00/x
  3. Step 3: Cross multiply
    124,620.31x = 171,995.77 × 79,251.00
  4. Step 4: Simplify right side
    124,620.31x = 13,630,835,908.29
  5. Step 5: Solve for x
    x = 13,630,835,908.29/124,620.31
  6. Step 6: Final answer
    x = 109,378.93

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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.