Home / 156,821.02-235,203.76-71,412.29

Finding the Fourth Proportional to 156,821.02, 235,203.76 and 71,412.29

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Solution

The fourth proportional to 156,821.02, 235,203.76 and 71,412.29 is: 107,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,821.02 : 235,203.76 = 71,412.29 : x
  2. Step 2: Convert to fraction form
    156,821.02/235,203.76 = 71,412.29/x
  3. Step 3: Cross multiply
    156,821.02x = 235,203.76 × 71,412.29
  4. Step 4: Simplify right side
    156,821.02x = 16,796,439,118.21
  5. Step 5: Solve for x
    x = 16,796,439,118.21/156,821.02
  6. Step 6: Final answer
    x = 107,105.79

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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.