Home / 121,919.09-182,956.39-51,798.40

Finding the Fourth Proportional to 121,919.09, 182,956.39 and 51,798.40

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Solution

The fourth proportional to 121,919.09, 182,956.39 and 51,798.40 is: 77,730.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,919.09 : 182,956.39 = 51,798.40 : x
  2. Step 2: Convert to fraction form
    121,919.09/182,956.39 = 51,798.40/x
  3. Step 3: Cross multiply
    121,919.09x = 182,956.39 × 51,798.40
  4. Step 4: Simplify right side
    121,919.09x = 9,476,847,684.89
  5. Step 5: Solve for x
    x = 9,476,847,684.89/121,919.09
  6. Step 6: Final answer
    x = 77,730.63

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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.