Home / 137,994.15-190,437.33-77,564.61

Finding the Fourth Proportional to 137,994.15, 190,437.33 and 77,564.61

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Solution

The fourth proportional to 137,994.15, 190,437.33 and 77,564.61 is: 107,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,994.15 : 190,437.33 = 77,564.61 : x
  2. Step 2: Convert to fraction form
    137,994.15/190,437.33 = 77,564.61/x
  3. Step 3: Cross multiply
    137,994.15x = 190,437.33 × 77,564.61
  4. Step 4: Simplify right side
    137,994.15x = 14,771,197,230.89
  5. Step 5: Solve for x
    x = 14,771,197,230.89/137,994.15
  6. Step 6: Final answer
    x = 107,042.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.