Home / 119,741.68-165,253.36-66,037.20

Finding the Fourth Proportional to 119,741.68, 165,253.36 and 66,037.20

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Solution

The fourth proportional to 119,741.68, 165,253.36 and 66,037.20 is: 91,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,741.68 : 165,253.36 = 66,037.20 : x
  2. Step 2: Convert to fraction form
    119,741.68/165,253.36 = 66,037.20/x
  3. Step 3: Cross multiply
    119,741.68x = 165,253.36 × 66,037.20
  4. Step 4: Simplify right side
    119,741.68x = 10,912,869,184.99
  5. Step 5: Solve for x
    x = 10,912,869,184.99/119,741.68
  6. Step 6: Final answer
    x = 91,136.76

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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.