Home / 121,960.15-182,994.54-77,575.39

Finding the Fourth Proportional to 121,960.15, 182,994.54 and 77,575.39

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Solution

The fourth proportional to 121,960.15, 182,994.54 and 77,575.39 is: 116,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,960.15 : 182,994.54 = 77,575.39 : x
  2. Step 2: Convert to fraction form
    121,960.15/182,994.54 = 77,575.39/x
  3. Step 3: Cross multiply
    121,960.15x = 182,994.54 × 77,575.39
  4. Step 4: Simplify right side
    121,960.15x = 14,195,872,808.37
  5. Step 5: Solve for x
    x = 14,195,872,808.37/121,960.15
  6. Step 6: Final answer
    x = 116,397.63

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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.