Home / 105,938.21-146,159.05-59,991.57

Finding the Fourth Proportional to 105,938.21, 146,159.05 and 59,991.57

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Solution

The fourth proportional to 105,938.21, 146,159.05 and 59,991.57 is: 82,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,938.21 : 146,159.05 = 59,991.57 : x
  2. Step 2: Convert to fraction form
    105,938.21/146,159.05 = 59,991.57/x
  3. Step 3: Cross multiply
    105,938.21x = 146,159.05 × 59,991.57
  4. Step 4: Simplify right side
    105,938.21x = 8,768,309,848.46
  5. Step 5: Solve for x
    x = 8,768,309,848.46/105,938.21
  6. Step 6: Final answer
    x = 82,768.16

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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.