Home / 156,985.09-235,953.42-103,858.30

Finding the Fourth Proportional to 156,985.09, 235,953.42 and 103,858.30

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Solution

The fourth proportional to 156,985.09, 235,953.42 and 103,858.30 is: 156,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.09 : 235,953.42 = 103,858.30 : x
  2. Step 2: Convert to fraction form
    156,985.09/235,953.42 = 103,858.30/x
  3. Step 3: Cross multiply
    156,985.09x = 235,953.42 × 103,858.30
  4. Step 4: Simplify right side
    156,985.09x = 24,505,721,080.39
  5. Step 5: Solve for x
    x = 24,505,721,080.39/156,985.09
  6. Step 6: Final answer
    x = 156,102.22

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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.