Home / 102,100.74-153,051.12-57,144.05

Finding the Fourth Proportional to 102,100.74, 153,051.12 and 57,144.05

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Solution

The fourth proportional to 102,100.74, 153,051.12 and 57,144.05 is: 85,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,100.74 : 153,051.12 = 57,144.05 : x
  2. Step 2: Convert to fraction form
    102,100.74/153,051.12 = 57,144.05/x
  3. Step 3: Cross multiply
    102,100.74x = 153,051.12 × 57,144.05
  4. Step 4: Simplify right side
    102,100.74x = 8,745,960,568.12
  5. Step 5: Solve for x
    x = 8,745,960,568.12/102,100.74
  6. Step 6: Final answer
    x = 85,660.11

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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.