Home / 102,820.47-141,891.09-57,497.83

Finding the Fourth Proportional to 102,820.47, 141,891.09 and 57,497.83

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Solution

The fourth proportional to 102,820.47, 141,891.09 and 57,497.83 is: 79,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,820.47 : 141,891.09 = 57,497.83 : x
  2. Step 2: Convert to fraction form
    102,820.47/141,891.09 = 57,497.83/x
  3. Step 3: Cross multiply
    102,820.47x = 141,891.09 × 57,497.83
  4. Step 4: Simplify right side
    102,820.47x = 8,158,429,483.85
  5. Step 5: Solve for x
    x = 8,158,429,483.85/102,820.47
  6. Step 6: Final answer
    x = 79,346.35

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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.