Home / 156,985.25-235,486.02-51,812.42

Finding the Fourth Proportional to 156,985.25, 235,486.02 and 51,812.42

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Solution

The fourth proportional to 156,985.25, 235,486.02 and 51,812.42 is: 77,721.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.25 : 235,486.02 = 51,812.42 : x
  2. Step 2: Convert to fraction form
    156,985.25/235,486.02 = 51,812.42/x
  3. Step 3: Cross multiply
    156,985.25x = 235,486.02 × 51,812.42
  4. Step 4: Simplify right side
    156,985.25x = 12,201,099,135.88
  5. Step 5: Solve for x
    x = 12,201,099,135.88/156,985.25
  6. Step 6: Final answer
    x = 77,721.31

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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.