Home / 135,298.69-186,732-77,926.98

Finding the Fourth Proportional to 135,298.69, 186,732 and 77,926.98

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Solution

The fourth proportional to 135,298.69, 186,732 and 77,926.98 is: 107,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,298.69 : 186,732 = 77,926.98 : x
  2. Step 2: Convert to fraction form
    135,298.69/186,732 = 77,926.98/x
  3. Step 3: Cross multiply
    135,298.69x = 186,732 × 77,926.98
  4. Step 4: Simplify right side
    135,298.69x = 14,551,460,829.36
  5. Step 5: Solve for x
    x = 14,551,460,829.36/135,298.69
  6. Step 6: Final answer
    x = 107,550.64

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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.