Home / 119,713.10-165,205.23-66,000.20

Finding the Fourth Proportional to 119,713.10, 165,205.23 and 66,000.20

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Solution

The fourth proportional to 119,713.10, 165,205.23 and 66,000.20 is: 91,080.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,713.10 : 165,205.23 = 66,000.20 : x
  2. Step 2: Convert to fraction form
    119,713.10/165,205.23 = 66,000.20/x
  3. Step 3: Cross multiply
    119,713.10x = 165,205.23 × 66,000.20
  4. Step 4: Simplify right side
    119,713.10x = 10,903,578,221.05
  5. Step 5: Solve for x
    x = 10,903,578,221.05/119,713.10
  6. Step 6: Final answer
    x = 91,080.91

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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.