Home / 108,773.61-149,827.91-76,887.69

Finding the Fourth Proportional to 108,773.61, 149,827.91 and 76,887.69

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Solution

The fourth proportional to 108,773.61, 149,827.91 and 76,887.69 is: 105,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,773.61 : 149,827.91 = 76,887.69 : x
  2. Step 2: Convert to fraction form
    108,773.61/149,827.91 = 76,887.69/x
  3. Step 3: Cross multiply
    108,773.61x = 149,827.91 × 76,887.69
  4. Step 4: Simplify right side
    108,773.61x = 11,519,921,512.99
  5. Step 5: Solve for x
    x = 11,519,921,512.99/108,773.61
  6. Step 6: Final answer
    x = 105,907.32

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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.