Home / 102,726.48-141,762.24-56,790.84

Finding the Fourth Proportional to 102,726.48, 141,762.24 and 56,790.84

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Solution

The fourth proportional to 102,726.48, 141,762.24 and 56,790.84 is: 78,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,726.48 : 141,762.24 = 56,790.84 : x
  2. Step 2: Convert to fraction form
    102,726.48/141,762.24 = 56,790.84/x
  3. Step 3: Cross multiply
    102,726.48x = 141,762.24 × 56,790.84
  4. Step 4: Simplify right side
    102,726.48x = 8,050,796,689.88
  5. Step 5: Solve for x
    x = 8,050,796,689.88/102,726.48
  6. Step 6: Final answer
    x = 78,371.19

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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.