Home / 121,423.12-182,156.60-54,894.58

Finding the Fourth Proportional to 121,423.12, 182,156.60 and 54,894.58

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Solution

The fourth proportional to 121,423.12, 182,156.60 and 54,894.58 is: 82,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,423.12 : 182,156.60 = 54,894.58 : x
  2. Step 2: Convert to fraction form
    121,423.12/182,156.60 = 54,894.58/x
  3. Step 3: Cross multiply
    121,423.12x = 182,156.60 × 54,894.58
  4. Step 4: Simplify right side
    121,423.12x = 9,999,410,051.23
  5. Step 5: Solve for x
    x = 9,999,410,051.23/121,423.12
  6. Step 6: Final answer
    x = 82,351.78

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1.5x scale

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.