Home / 120,377.45-166,011.23-103,376.36

Finding the Fourth Proportional to 120,377.45, 166,011.23 and 103,376.36

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Solution

The fourth proportional to 120,377.45, 166,011.23 and 103,376.36 is: 142,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,377.45 : 166,011.23 = 103,376.36 : x
  2. Step 2: Convert to fraction form
    120,377.45/166,011.23 = 103,376.36/x
  3. Step 3: Cross multiply
    120,377.45x = 166,011.23 × 103,376.36
  4. Step 4: Simplify right side
    120,377.45x = 17,161,635,329.58
  5. Step 5: Solve for x
    x = 17,161,635,329.58/120,377.45
  6. Step 6: Final answer
    x = 142,565.21

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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.