Home / 156,485.24-234,813-66,513.86

Finding the Fourth Proportional to 156,485.24, 234,813 and 66,513.86

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Solution

The fourth proportional to 156,485.24, 234,813 and 66,513.86 is: 99,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,485.24 : 234,813 = 66,513.86 : x
  2. Step 2: Convert to fraction form
    156,485.24/234,813 = 66,513.86/x
  3. Step 3: Cross multiply
    156,485.24x = 234,813 × 66,513.86
  4. Step 4: Simplify right side
    156,485.24x = 15,618,319,008.18
  5. Step 5: Solve for x
    x = 15,618,319,008.18/156,485.24
  6. Step 6: Final answer
    x = 99,806.98

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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.