Home / 117,437.16-162,105.30-69,690.50

Finding the Fourth Proportional to 117,437.16, 162,105.30 and 69,690.50

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Solution

The fourth proportional to 117,437.16, 162,105.30 and 69,690.50 is: 96,197.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,437.16 : 162,105.30 = 69,690.50 : x
  2. Step 2: Convert to fraction form
    117,437.16/162,105.30 = 69,690.50/x
  3. Step 3: Cross multiply
    117,437.16x = 162,105.30 × 69,690.50
  4. Step 4: Simplify right side
    117,437.16x = 11,297,199,409.65
  5. Step 5: Solve for x
    x = 11,297,199,409.65/117,437.16
  6. Step 6: Final answer
    x = 96,197.83

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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.