Home / 156,985.73-235,486.77-51,812.90

Finding the Fourth Proportional to 156,985.73, 235,486.77 and 51,812.90

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Solution

The fourth proportional to 156,985.73, 235,486.77 and 51,812.90 is: 77,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.73 : 235,486.77 = 51,812.90 : x
  2. Step 2: Convert to fraction form
    156,985.73/235,486.77 = 51,812.90/x
  3. Step 3: Cross multiply
    156,985.73x = 235,486.77 × 51,812.90
  4. Step 4: Simplify right side
    156,985.73x = 12,201,252,465.33
  5. Step 5: Solve for x
    x = 12,201,252,465.33/156,985.73
  6. Step 6: Final answer
    x = 77,722.05

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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.