Home / 121,429.80-182,134.46-68,673.32

Finding the Fourth Proportional to 121,429.80, 182,134.46 and 68,673.32

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Solution

The fourth proportional to 121,429.80, 182,134.46 and 68,673.32 is: 103,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,429.80 : 182,134.46 = 68,673.32 : x
  2. Step 2: Convert to fraction form
    121,429.80/182,134.46 = 68,673.32/x
  3. Step 3: Cross multiply
    121,429.80x = 182,134.46 × 68,673.32
  4. Step 4: Simplify right side
    121,429.80x = 12,507,778,054.61
  5. Step 5: Solve for x
    x = 12,507,778,054.61/121,429.80
  6. Step 6: Final answer
    x = 103,004.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.