Home / 102,759.10-154,045.23-39,538.90

Finding the Fourth Proportional to 102,759.10, 154,045.23 and 39,538.90

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Solution

The fourth proportional to 102,759.10, 154,045.23 and 39,538.90 is: 59,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,759.10 : 154,045.23 = 39,538.90 : x
  2. Step 2: Convert to fraction form
    102,759.10/154,045.23 = 39,538.90/x
  3. Step 3: Cross multiply
    102,759.10x = 154,045.23 × 39,538.90
  4. Step 4: Simplify right side
    102,759.10x = 6,090,778,872.84
  5. Step 5: Solve for x
    x = 6,090,778,872.84/102,759.10
  6. Step 6: Final answer
    x = 59,272.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.