Home / 102,491.31-141,503.85-64,303.25

Finding the Fourth Proportional to 102,491.31, 141,503.85 and 64,303.25

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Solution

The fourth proportional to 102,491.31, 141,503.85 and 64,303.25 is: 88,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,491.31 : 141,503.85 = 64,303.25 : x
  2. Step 2: Convert to fraction form
    102,491.31/141,503.85 = 64,303.25/x
  3. Step 3: Cross multiply
    102,491.31x = 141,503.85 × 64,303.25
  4. Step 4: Simplify right side
    102,491.31x = 9,099,156,734.99
  5. Step 5: Solve for x
    x = 9,099,156,734.99/102,491.31
  6. Step 6: Final answer
    x = 88,779.79

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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.