Home / 122,784.24-169,441.12-69,069.66

Finding the Fourth Proportional to 122,784.24, 169,441.12 and 69,069.66

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Solution

The fourth proportional to 122,784.24, 169,441.12 and 69,069.66 is: 95,315.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,784.24 : 169,441.12 = 69,069.66 : x
  2. Step 2: Convert to fraction form
    122,784.24/169,441.12 = 69,069.66/x
  3. Step 3: Cross multiply
    122,784.24x = 169,441.12 × 69,069.66
  4. Step 4: Simplify right side
    122,784.24x = 11,703,240,548.42
  5. Step 5: Solve for x
    x = 11,703,240,548.42/122,784.24
  6. Step 6: Final answer
    x = 95,315.49

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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.