Home / 100,748.41-150,981.37-79,595.87

Finding the Fourth Proportional to 100,748.41, 150,981.37 and 79,595.87

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Solution

The fourth proportional to 100,748.41, 150,981.37 and 79,595.87 is: 119,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,748.41 : 150,981.37 = 79,595.87 : x
  2. Step 2: Convert to fraction form
    100,748.41/150,981.37 = 79,595.87/x
  3. Step 3: Cross multiply
    100,748.41x = 150,981.37 × 79,595.87
  4. Step 4: Simplify right side
    100,748.41x = 12,017,492,545.05
  5. Step 5: Solve for x
    x = 12,017,492,545.05/100,748.41
  6. Step 6: Final answer
    x = 119,282.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.