Home / 117,511.56-162,191.52-72,213.30

Finding the Fourth Proportional to 117,511.56, 162,191.52 and 72,213.30

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Solution

The fourth proportional to 117,511.56, 162,191.52 and 72,213.30 is: 99,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,511.56 : 162,191.52 = 72,213.30 : x
  2. Step 2: Convert to fraction form
    117,511.56/162,191.52 = 72,213.30/x
  3. Step 3: Cross multiply
    117,511.56x = 162,191.52 × 72,213.30
  4. Step 4: Simplify right side
    117,511.56x = 11,712,384,891.22
  5. Step 5: Solve for x
    x = 11,712,384,891.22/117,511.56
  6. Step 6: Final answer
    x = 99,670.07

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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.