Home / 162,428.94-243,479.86-67,711.57

Finding the Fourth Proportional to 162,428.94, 243,479.86 and 67,711.57

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Solution

The fourth proportional to 162,428.94, 243,479.86 and 67,711.57 is: 101,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,428.94 : 243,479.86 = 67,711.57 : x
  2. Step 2: Convert to fraction form
    162,428.94/243,479.86 = 67,711.57/x
  3. Step 3: Cross multiply
    162,428.94x = 243,479.86 × 67,711.57
  4. Step 4: Simplify right side
    162,428.94x = 16,486,403,583.98
  5. Step 5: Solve for x
    x = 16,486,403,583.98/162,428.94
  6. Step 6: Final answer
    x = 101,499.18

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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.