Home / 102,635.10-141,638.63-64,396.11

Finding the Fourth Proportional to 102,635.10, 141,638.63 and 64,396.11

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Solution

The fourth proportional to 102,635.10, 141,638.63 and 64,396.11 is: 88,868.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,635.10 : 141,638.63 = 64,396.11 : x
  2. Step 2: Convert to fraction form
    102,635.10/141,638.63 = 64,396.11/x
  3. Step 3: Cross multiply
    102,635.10x = 141,638.63 × 64,396.11
  4. Step 4: Simplify right side
    102,635.10x = 9,120,977,006.89
  5. Step 5: Solve for x
    x = 9,120,977,006.89/102,635.10
  6. Step 6: Final answer
    x = 88,868.01

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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.