Home / 114,938.48-158,689.20-74,120.87

Finding the Fourth Proportional to 114,938.48, 158,689.20 and 74,120.87

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Solution

The fourth proportional to 114,938.48, 158,689.20 and 74,120.87 is: 102,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,938.48 : 158,689.20 = 74,120.87 : x
  2. Step 2: Convert to fraction form
    114,938.48/158,689.20 = 74,120.87/x
  3. Step 3: Cross multiply
    114,938.48x = 158,689.20 × 74,120.87
  4. Step 4: Simplify right side
    114,938.48x = 11,762,181,563.60
  5. Step 5: Solve for x
    x = 11,762,181,563.60/114,938.48
  6. Step 6: Final answer
    x = 102,334.58

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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.