Home / 121,818.10-182,725.20-36,429.16

Finding the Fourth Proportional to 121,818.10, 182,725.20 and 36,429.16

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Solution

The fourth proportional to 121,818.10, 182,725.20 and 36,429.16 is: 54,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,818.10 : 182,725.20 = 36,429.16 : x
  2. Step 2: Convert to fraction form
    121,818.10/182,725.20 = 36,429.16/x
  3. Step 3: Cross multiply
    121,818.10x = 182,725.20 × 36,429.16
  4. Step 4: Simplify right side
    121,818.10x = 6,656,525,546.83
  5. Step 5: Solve for x
    x = 6,656,525,546.83/121,818.10
  6. Step 6: Final answer
    x = 54,643.16

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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.