Home / 108,160.77-149,302.91-81,381.12

Finding the Fourth Proportional to 108,160.77, 149,302.91 and 81,381.12

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Solution

The fourth proportional to 108,160.77, 149,302.91 and 81,381.12 is: 112,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,160.77 : 149,302.91 = 81,381.12 : x
  2. Step 2: Convert to fraction form
    108,160.77/149,302.91 = 81,381.12/x
  3. Step 3: Cross multiply
    108,160.77x = 149,302.91 × 81,381.12
  4. Step 4: Simplify right side
    108,160.77x = 12,150,438,518.46
  5. Step 5: Solve for x
    x = 12,150,438,518.46/108,160.77
  6. Step 6: Final answer
    x = 112,336.84

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1.5x scale

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.