Home / 122,934.18-169,686.78-71,958.84

Finding the Fourth Proportional to 122,934.18, 169,686.78 and 71,958.84

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Solution

The fourth proportional to 122,934.18, 169,686.78 and 71,958.84 is: 99,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,934.18 : 169,686.78 = 71,958.84 : x
  2. Step 2: Convert to fraction form
    122,934.18/169,686.78 = 71,958.84/x
  3. Step 3: Cross multiply
    122,934.18x = 169,686.78 × 71,958.84
  4. Step 4: Simplify right side
    122,934.18x = 12,210,463,852.14
  5. Step 5: Solve for x
    x = 12,210,463,852.14/122,934.18
  6. Step 6: Final answer
    x = 99,325.21

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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.