Home / 430,129.97-645,153.24-130,613.14

Finding the Fourth Proportional to 430,129.97, 645,153.24 and 130,613.14

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Solution

The fourth proportional to 430,129.97, 645,153.24 and 130,613.14 is: 195,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,129.97 : 645,153.24 = 130,613.14 : x
  2. Step 2: Convert to fraction form
    430,129.97/645,153.24 = 130,613.14/x
  3. Step 3: Cross multiply
    430,129.97x = 645,153.24 × 130,613.14
  4. Step 4: Simplify right side
    430,129.97x = 84,265,489,804.51
  5. Step 5: Solve for x
    x = 84,265,489,804.51/430,129.97
  6. Step 6: Final answer
    x = 195,907.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.