Home / 102,105.76-153,145.20-35,531.68

Finding the Fourth Proportional to 102,105.76, 153,145.20 and 35,531.68

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Solution

The fourth proportional to 102,105.76, 153,145.20 and 35,531.68 is: 53,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,105.76 : 153,145.20 = 35,531.68 : x
  2. Step 2: Convert to fraction form
    102,105.76/153,145.20 = 35,531.68/x
  3. Step 3: Cross multiply
    102,105.76x = 153,145.20 × 35,531.68
  4. Step 4: Simplify right side
    102,105.76x = 5,441,506,239.94
  5. Step 5: Solve for x
    x = 5,441,506,239.94/102,105.76
  6. Step 6: Final answer
    x = 53,292.84

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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.