Home / 117,811.18-162,582.88-64,099.65

Finding the Fourth Proportional to 117,811.18, 162,582.88 and 64,099.65

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Solution

The fourth proportional to 117,811.18, 162,582.88 and 64,099.65 is: 88,459.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,811.18 : 162,582.88 = 64,099.65 : x
  2. Step 2: Convert to fraction form
    117,811.18/162,582.88 = 64,099.65/x
  3. Step 3: Cross multiply
    117,811.18x = 162,582.88 × 64,099.65
  4. Step 4: Simplify right side
    117,811.18x = 10,421,505,703.99
  5. Step 5: Solve for x
    x = 10,421,505,703.99/117,811.18
  6. Step 6: Final answer
    x = 88,459.39

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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.