Home / 102,838.10-141,910.65-56,895.03

Finding the Fourth Proportional to 102,838.10, 141,910.65 and 56,895.03

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Solution

The fourth proportional to 102,838.10, 141,910.65 and 56,895.03 is: 78,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,838.10 : 141,910.65 = 56,895.03 : x
  2. Step 2: Convert to fraction form
    102,838.10/141,910.65 = 56,895.03/x
  3. Step 3: Cross multiply
    102,838.10x = 141,910.65 × 56,895.03
  4. Step 4: Simplify right side
    102,838.10x = 8,074,010,689.07
  5. Step 5: Solve for x
    x = 8,074,010,689.07/102,838.10
  6. Step 6: Final answer
    x = 78,511.87

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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.