Home / 156,696.10-235,144.95-86,625.70

Finding the Fourth Proportional to 156,696.10, 235,144.95 and 86,625.70

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Solution

The fourth proportional to 156,696.10, 235,144.95 and 86,625.70 is: 129,994.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,696.10 : 235,144.95 = 86,625.70 : x
  2. Step 2: Convert to fraction form
    156,696.10/235,144.95 = 86,625.70/x
  3. Step 3: Cross multiply
    156,696.10x = 235,144.95 × 86,625.70
  4. Step 4: Simplify right side
    156,696.10x = 20,369,595,895.22
  5. Step 5: Solve for x
    x = 20,369,595,895.22/156,696.10
  6. Step 6: Final answer
    x = 129,994.27

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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.