Home / 124,619.81-171,995.08-79,250.50

Finding the Fourth Proportional to 124,619.81, 171,995.08 and 79,250.50

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Solution

The fourth proportional to 124,619.81, 171,995.08 and 79,250.50 is: 109,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,619.81 : 171,995.08 = 79,250.50 : x
  2. Step 2: Convert to fraction form
    124,619.81/171,995.08 = 79,250.50/x
  3. Step 3: Cross multiply
    124,619.81x = 171,995.08 × 79,250.50
  4. Step 4: Simplify right side
    124,619.81x = 13,630,695,227.56
  5. Step 5: Solve for x
    x = 13,630,695,227.56/124,619.81
  6. Step 6: Final answer
    x = 109,378.24

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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.