Home / 108,537.57-149,814.36-66,117.06

Finding the Fourth Proportional to 108,537.57, 149,814.36 and 66,117.06

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Solution

The fourth proportional to 108,537.57, 149,814.36 and 66,117.06 is: 91,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,537.57 : 149,814.36 = 66,117.06 : x
  2. Step 2: Convert to fraction form
    108,537.57/149,814.36 = 66,117.06/x
  3. Step 3: Cross multiply
    108,537.57x = 149,814.36 × 66,117.06
  4. Step 4: Simplify right side
    108,537.57x = 9,905,285,028.98
  5. Step 5: Solve for x
    x = 9,905,285,028.98/108,537.57
  6. Step 6: Final answer
    x = 91,261.35

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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.