Home / 135,304.84-186,740.50-77,933

Finding the Fourth Proportional to 135,304.84, 186,740.50 and 77,933

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Solution

The fourth proportional to 135,304.84, 186,740.50 and 77,933 is: 107,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,304.84 : 186,740.50 = 77,933 : x
  2. Step 2: Convert to fraction form
    135,304.84/186,740.50 = 77,933/x
  3. Step 3: Cross multiply
    135,304.84x = 186,740.50 × 77,933
  4. Step 4: Simplify right side
    135,304.84x = 14,553,247,386.50
  5. Step 5: Solve for x
    x = 14,553,247,386.50/135,304.84
  6. Step 6: Final answer
    x = 107,558.96

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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.