Home / 108,453.12-149,605.47-76,237.26

Finding the Fourth Proportional to 108,453.12, 149,605.47 and 76,237.26

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Solution

The fourth proportional to 108,453.12, 149,605.47 and 76,237.26 is: 105,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,453.12 : 149,605.47 = 76,237.26 : x
  2. Step 2: Convert to fraction form
    108,453.12/149,605.47 = 76,237.26/x
  3. Step 3: Cross multiply
    108,453.12x = 149,605.47 × 76,237.26
  4. Step 4: Simplify right side
    108,453.12x = 11,405,511,113.81
  5. Step 5: Solve for x
    x = 11,405,511,113.81/108,453.12
  6. Step 6: Final answer
    x = 105,165.36

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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.