Home / 108,431.47-149,636.19-60,689.26

Finding the Fourth Proportional to 108,431.47, 149,636.19 and 60,689.26

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Solution

The fourth proportional to 108,431.47, 149,636.19 and 60,689.26 is: 83,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,431.47 : 149,636.19 = 60,689.26 : x
  2. Step 2: Convert to fraction form
    108,431.47/149,636.19 = 60,689.26/x
  3. Step 3: Cross multiply
    108,431.47x = 149,636.19 × 60,689.26
  4. Step 4: Simplify right side
    108,431.47x = 9,081,309,640.32
  5. Step 5: Solve for x
    x = 9,081,309,640.32/108,431.47
  6. Step 6: Final answer
    x = 83,751.60

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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.