Home / 134,834.22-186,069.96-74,405.40

Finding the Fourth Proportional to 134,834.22, 186,069.96 and 74,405.40

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Solution

The fourth proportional to 134,834.22, 186,069.96 and 74,405.40 is: 102,678.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,834.22 : 186,069.96 = 74,405.40 : x
  2. Step 2: Convert to fraction form
    134,834.22/186,069.96 = 74,405.40/x
  3. Step 3: Cross multiply
    134,834.22x = 186,069.96 × 74,405.40
  4. Step 4: Simplify right side
    134,834.22x = 13,844,609,801.78
  5. Step 5: Solve for x
    x = 13,844,609,801.78/134,834.22
  6. Step 6: Final answer
    x = 102,678.75

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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.