Home / 135,041.20-186,318.94-77,677.52

Finding the Fourth Proportional to 135,041.20, 186,318.94 and 77,677.52

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Solution

The fourth proportional to 135,041.20, 186,318.94 and 77,677.52 is: 107,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,041.20 : 186,318.94 = 77,677.52 : x
  2. Step 2: Convert to fraction form
    135,041.20/186,318.94 = 77,677.52/x
  3. Step 3: Cross multiply
    135,041.20x = 186,318.94 × 77,677.52
  4. Step 4: Simplify right side
    135,041.20x = 14,472,793,188.23
  5. Step 5: Solve for x
    x = 14,472,793,188.23/135,041.20
  6. Step 6: Final answer
    x = 107,173.17

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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.