Home / 162,428.83-243,479.63-67,711.41

Finding the Fourth Proportional to 162,428.83, 243,479.63 and 67,711.41

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Solution

The fourth proportional to 162,428.83, 243,479.63 and 67,711.41 is: 101,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,428.83 : 243,479.63 = 67,711.41 : x
  2. Step 2: Convert to fraction form
    162,428.83/243,479.63 = 67,711.41/x
  3. Step 3: Cross multiply
    162,428.83x = 243,479.63 × 67,711.41
  4. Step 4: Simplify right side
    162,428.83x = 16,486,348,715.02
  5. Step 5: Solve for x
    x = 16,486,348,715.02/162,428.83
  6. Step 6: Final answer
    x = 101,498.91

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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.