Home / 156,838.90-235,126.08-68,025.50

Finding the Fourth Proportional to 156,838.90, 235,126.08 and 68,025.50

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Solution

The fourth proportional to 156,838.90, 235,126.08 and 68,025.50 is: 101,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,838.90 : 235,126.08 = 68,025.50 : x
  2. Step 2: Convert to fraction form
    156,838.90/235,126.08 = 68,025.50/x
  3. Step 3: Cross multiply
    156,838.90x = 235,126.08 × 68,025.50
  4. Step 4: Simplify right side
    156,838.90x = 15,994,569,155.04
  5. Step 5: Solve for x
    x = 15,994,569,155.04/156,838.90
  6. Step 6: Final answer
    x = 101,980.88

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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.