Home / 108,991.20-150,421.95-61,244.54

Finding the Fourth Proportional to 108,991.20, 150,421.95 and 61,244.54

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Solution

The fourth proportional to 108,991.20, 150,421.95 and 61,244.54 is: 84,525.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,991.20 : 150,421.95 = 61,244.54 : x
  2. Step 2: Convert to fraction form
    108,991.20/150,421.95 = 61,244.54/x
  3. Step 3: Cross multiply
    108,991.20x = 150,421.95 × 61,244.54
  4. Step 4: Simplify right side
    108,991.20x = 9,212,523,300.31
  5. Step 5: Solve for x
    x = 9,212,523,300.31/108,991.20
  6. Step 6: Final answer
    x = 84,525.39

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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.