Home / 156,677.30-235,015.95-139,618.70

Finding the Fourth Proportional to 156,677.30, 235,015.95 and 139,618.70

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Solution

The fourth proportional to 156,677.30, 235,015.95 and 139,618.70 is: 209,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,677.30 : 235,015.95 = 139,618.70 : x
  2. Step 2: Convert to fraction form
    156,677.30/235,015.95 = 139,618.70/x
  3. Step 3: Cross multiply
    156,677.30x = 235,015.95 × 139,618.70
  4. Step 4: Simplify right side
    156,677.30x = 32,812,621,418.27
  5. Step 5: Solve for x
    x = 32,812,621,418.27/156,677.30
  6. Step 6: Final answer
    x = 209,428.05

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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.