Home / 135,026.94-186,331.45-77,661.93

Finding the Fourth Proportional to 135,026.94, 186,331.45 and 77,661.93

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Solution

The fourth proportional to 135,026.94, 186,331.45 and 77,661.93 is: 107,170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,026.94 : 186,331.45 = 77,661.93 : x
  2. Step 2: Convert to fraction form
    135,026.94/186,331.45 = 77,661.93/x
  3. Step 3: Cross multiply
    135,026.94x = 186,331.45 × 77,661.93
  4. Step 4: Simplify right side
    135,026.94x = 14,470,860,026.70
  5. Step 5: Solve for x
    x = 14,470,860,026.70/135,026.94
  6. Step 6: Final answer
    x = 107,170.17

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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.