Home / 156,985.45-235,532.85-68,302.60

Finding the Fourth Proportional to 156,985.45, 235,532.85 and 68,302.60

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Solution

The fourth proportional to 156,985.45, 235,532.85 and 68,302.60 is: 102,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.45 : 235,532.85 = 68,302.60 : x
  2. Step 2: Convert to fraction form
    156,985.45/235,532.85 = 68,302.60/x
  3. Step 3: Cross multiply
    156,985.45x = 235,532.85 × 68,302.60
  4. Step 4: Simplify right side
    156,985.45x = 16,087,506,040.41
  5. Step 5: Solve for x
    x = 16,087,506,040.41/156,985.45
  6. Step 6: Final answer
    x = 102,477.69

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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.