Home / 108,627.48-149,748.84-76,263.57

Finding the Fourth Proportional to 108,627.48, 149,748.84 and 76,263.57

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Solution

The fourth proportional to 108,627.48, 149,748.84 and 76,263.57 is: 105,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,627.48 : 149,748.84 = 76,263.57 : x
  2. Step 2: Convert to fraction form
    108,627.48/149,748.84 = 76,263.57/x
  3. Step 3: Cross multiply
    108,627.48x = 149,748.84 × 76,263.57
  4. Step 4: Simplify right side
    108,627.48x = 11,420,381,141.76
  5. Step 5: Solve for x
    x = 11,420,381,141.76/108,627.48
  6. Step 6: Final answer
    x = 105,133.44

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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.