Home / 108,104.36-149,208.90-63,406.76

Finding the Fourth Proportional to 108,104.36, 149,208.90 and 63,406.76

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Solution

The fourth proportional to 108,104.36, 149,208.90 and 63,406.76 is: 87,515.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,104.36 : 149,208.90 = 63,406.76 : x
  2. Step 2: Convert to fraction form
    108,104.36/149,208.90 = 63,406.76/x
  3. Step 3: Cross multiply
    108,104.36x = 149,208.90 × 63,406.76
  4. Step 4: Simplify right side
    108,104.36x = 9,460,852,912.16
  5. Step 5: Solve for x
    x = 9,460,852,912.16/108,104.36
  6. Step 6: Final answer
    x = 87,515.92

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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.