Home / 108,623.43-149,937.08-68,404.50

Finding the Fourth Proportional to 108,623.43, 149,937.08 and 68,404.50

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Solution

The fourth proportional to 108,623.43, 149,937.08 and 68,404.50 is: 94,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,623.43 : 149,937.08 = 68,404.50 : x
  2. Step 2: Convert to fraction form
    108,623.43/149,937.08 = 68,404.50/x
  3. Step 3: Cross multiply
    108,623.43x = 149,937.08 × 68,404.50
  4. Step 4: Simplify right side
    108,623.43x = 10,256,370,646.84
  5. Step 5: Solve for x
    x = 10,256,370,646.84/108,623.43
  6. Step 6: Final answer
    x = 94,421.35

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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.