Home / 102,906.02-142,005.48-57,589.76

Finding the Fourth Proportional to 102,906.02, 142,005.48 and 57,589.76

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Solution

The fourth proportional to 102,906.02, 142,005.48 and 57,589.76 is: 79,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,906.02 : 142,005.48 = 57,589.76 : x
  2. Step 2: Convert to fraction form
    102,906.02/142,005.48 = 57,589.76/x
  3. Step 3: Cross multiply
    102,906.02x = 142,005.48 × 57,589.76
  4. Step 4: Simplify right side
    102,906.02x = 8,178,061,511.88
  5. Step 5: Solve for x
    x = 8,178,061,511.88/102,906.02
  6. Step 6: Final answer
    x = 79,471.17

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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.