Home / 119,136.56-164,400.96-65,421.28

Finding the Fourth Proportional to 119,136.56, 164,400.96 and 65,421.28

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Solution

The fourth proportional to 119,136.56, 164,400.96 and 65,421.28 is: 90,277.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,136.56 : 164,400.96 = 65,421.28 : x
  2. Step 2: Convert to fraction form
    119,136.56/164,400.96 = 65,421.28/x
  3. Step 3: Cross multiply
    119,136.56x = 164,400.96 × 65,421.28
  4. Step 4: Simplify right side
    119,136.56x = 10,755,321,236.43
  5. Step 5: Solve for x
    x = 10,755,321,236.43/119,136.56
  6. Step 6: Final answer
    x = 90,277.25

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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.