Home / 134,918.50-186,182.64-74,487.88

Finding the Fourth Proportional to 134,918.50, 186,182.64 and 74,487.88

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Solution

The fourth proportional to 134,918.50, 186,182.64 and 74,487.88 is: 102,790.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,918.50 : 186,182.64 = 74,487.88 : x
  2. Step 2: Convert to fraction form
    134,918.50/186,182.64 = 74,487.88/x
  3. Step 3: Cross multiply
    134,918.50x = 186,182.64 × 74,487.88
  4. Step 4: Simplify right side
    134,918.50x = 13,868,350,146.40
  5. Step 5: Solve for x
    x = 13,868,350,146.40/134,918.50
  6. Step 6: Final answer
    x = 102,790.57

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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.