Home / 156,801.10-235,028.85-86,730.70

Finding the Fourth Proportional to 156,801.10, 235,028.85 and 86,730.70

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Solution

The fourth proportional to 156,801.10, 235,028.85 and 86,730.70 is: 130,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,801.10 : 235,028.85 = 86,730.70 : x
  2. Step 2: Convert to fraction form
    156,801.10/235,028.85 = 86,730.70/x
  3. Step 3: Cross multiply
    156,801.10x = 235,028.85 × 86,730.70
  4. Step 4: Simplify right side
    156,801.10x = 20,384,216,680.70
  5. Step 5: Solve for x
    x = 20,384,216,680.70/156,801.10
  6. Step 6: Final answer
    x = 130,000.47

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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.