Home / 108,513.02-163,508.86-89,223.68

Finding the Fourth Proportional to 108,513.02, 163,508.86 and 89,223.68

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Solution

The fourth proportional to 108,513.02, 163,508.86 and 89,223.68 is: 134,443.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,513.02 : 163,508.86 = 89,223.68 : x
  2. Step 2: Convert to fraction form
    108,513.02/163,508.86 = 89,223.68/x
  3. Step 3: Cross multiply
    108,513.02x = 163,508.86 × 89,223.68
  4. Step 4: Simplify right side
    108,513.02x = 14,588,862,201.80
  5. Step 5: Solve for x
    x = 14,588,862,201.80/108,513.02
  6. Step 6: Final answer
    x = 134,443.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.