Home / 156,841.90-235,130.58-68,028.50

Finding the Fourth Proportional to 156,841.90, 235,130.58 and 68,028.50

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Solution

The fourth proportional to 156,841.90, 235,130.58 and 68,028.50 is: 101,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,841.90 : 235,130.58 = 68,028.50 : x
  2. Step 2: Convert to fraction form
    156,841.90/235,130.58 = 68,028.50/x
  3. Step 3: Cross multiply
    156,841.90x = 235,130.58 × 68,028.50
  4. Step 4: Simplify right side
    156,841.90x = 15,995,580,661.53
  5. Step 5: Solve for x
    x = 15,995,580,661.53/156,841.90
  6. Step 6: Final answer
    x = 101,985.38

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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.