Home / 102,650.14-141,655.86-57,328.96

Finding the Fourth Proportional to 102,650.14, 141,655.86 and 57,328.96

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Solution

The fourth proportional to 102,650.14, 141,655.86 and 57,328.96 is: 79,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,650.14 : 141,655.86 = 57,328.96 : x
  2. Step 2: Convert to fraction form
    102,650.14/141,655.86 = 57,328.96/x
  3. Step 3: Cross multiply
    102,650.14x = 141,655.86 × 57,328.96
  4. Step 4: Simplify right side
    102,650.14x = 8,120,983,131.71
  5. Step 5: Solve for x
    x = 8,120,983,131.71/102,650.14
  6. Step 6: Final answer
    x = 79,113.22

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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.