Home / 122,686.42-169,313.26-68,988.28

Finding the Fourth Proportional to 122,686.42, 169,313.26 and 68,988.28

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Solution

The fourth proportional to 122,686.42, 169,313.26 and 68,988.28 is: 95,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,686.42 : 169,313.26 = 68,988.28 : x
  2. Step 2: Convert to fraction form
    122,686.42/169,313.26 = 68,988.28/x
  3. Step 3: Cross multiply
    122,686.42x = 169,313.26 × 68,988.28
  4. Step 4: Simplify right side
    122,686.42x = 11,680,630,588.59
  5. Step 5: Solve for x
    x = 11,680,630,588.59/122,686.42
  6. Step 6: Final answer
    x = 95,207.20

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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.