Home / 108,140.92-161,211.77-106,436.68

Finding the Fourth Proportional to 108,140.92, 161,211.77 and 106,436.68

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Solution

The fourth proportional to 108,140.92, 161,211.77 and 106,436.68 is: 158,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,140.92 : 161,211.77 = 106,436.68 : x
  2. Step 2: Convert to fraction form
    108,140.92/161,211.77 = 106,436.68/x
  3. Step 3: Cross multiply
    108,140.92x = 161,211.77 × 106,436.68
  4. Step 4: Simplify right side
    108,140.92x = 17,158,845,575.72
  5. Step 5: Solve for x
    x = 17,158,845,575.72/108,140.92
  6. Step 6: Final answer
    x = 158,671.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.