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Finding the Fourth Proportional to 110,312.58, 152,147.96 and 76,377.87

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Solution

The fourth proportional to 110,312.58, 152,147.96 and 76,377.87 is: 105,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,312.58 : 152,147.96 = 76,377.87 : x
  2. Step 2: Convert to fraction form
    110,312.58/152,147.96 = 76,377.87/x
  3. Step 3: Cross multiply
    110,312.58x = 152,147.96 × 76,377.87
  4. Step 4: Simplify right side
    110,312.58x = 11,620,736,727.76
  5. Step 5: Solve for x
    x = 11,620,736,727.76/110,312.58
  6. Step 6: Final answer
    x = 105,343.71

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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.