Home / 102,821.17-141,892.24-57,498.63

Finding the Fourth Proportional to 102,821.17, 141,892.24 and 57,498.63

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Solution

The fourth proportional to 102,821.17, 141,892.24 and 57,498.63 is: 79,347.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,821.17 : 141,892.24 = 57,498.63 : x
  2. Step 2: Convert to fraction form
    102,821.17/141,892.24 = 57,498.63/x
  3. Step 3: Cross multiply
    102,821.17x = 141,892.24 × 57,498.63
  4. Step 4: Simplify right side
    102,821.17x = 8,158,609,120.14
  5. Step 5: Solve for x
    x = 8,158,609,120.14/102,821.17
  6. Step 6: Final answer
    x = 79,347.57

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1.5x scale

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.