Home / 102,869.47-141,644.44-90,050.91

Finding the Fourth Proportional to 102,869.47, 141,644.44 and 90,050.91

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Solution

The fourth proportional to 102,869.47, 141,644.44 and 90,050.91 is: 123,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,869.47 : 141,644.44 = 90,050.91 : x
  2. Step 2: Convert to fraction form
    102,869.47/141,644.44 = 90,050.91/x
  3. Step 3: Cross multiply
    102,869.47x = 141,644.44 × 90,050.91
  4. Step 4: Simplify right side
    102,869.47x = 12,755,211,241.69
  5. Step 5: Solve for x
    x = 12,755,211,241.69/102,869.47
  6. Step 6: Final answer
    x = 123,994.14

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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.