Home / 102,903.15-142,012.94-57,586.35

Finding the Fourth Proportional to 102,903.15, 142,012.94 and 57,586.35

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Solution

The fourth proportional to 102,903.15, 142,012.94 and 57,586.35 is: 79,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,903.15 : 142,012.94 = 57,586.35 : x
  2. Step 2: Convert to fraction form
    102,903.15/142,012.94 = 57,586.35/x
  3. Step 3: Cross multiply
    102,903.15x = 142,012.94 × 57,586.35
  4. Step 4: Simplify right side
    102,903.15x = 8,178,006,579.44
  5. Step 5: Solve for x
    x = 8,178,006,579.44/102,903.15
  6. Step 6: Final answer
    x = 79,472.85

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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.