Home / 102,641.17-141,636.73-57,315.61

Finding the Fourth Proportional to 102,641.17, 141,636.73 and 57,315.61

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Solution

The fourth proportional to 102,641.17, 141,636.73 and 57,315.61 is: 79,091.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,641.17 : 141,636.73 = 57,315.61 : x
  2. Step 2: Convert to fraction form
    102,641.17/141,636.73 = 57,315.61/x
  3. Step 3: Cross multiply
    102,641.17x = 141,636.73 × 57,315.61
  4. Step 4: Simplify right side
    102,641.17x = 8,117,995,578.36
  5. Step 5: Solve for x
    x = 8,117,995,578.36/102,641.17
  6. Step 6: Final answer
    x = 79,091.03

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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.