Home / 156,699.90-235,087.65-51,513.30

Finding the Fourth Proportional to 156,699.90, 235,087.65 and 51,513.30

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Solution

The fourth proportional to 156,699.90, 235,087.65 and 51,513.30 is: 77,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,699.90 : 235,087.65 = 51,513.30 : x
  2. Step 2: Convert to fraction form
    156,699.90/235,087.65 = 51,513.30/x
  3. Step 3: Cross multiply
    156,699.90x = 235,087.65 × 51,513.30
  4. Step 4: Simplify right side
    156,699.90x = 12,110,140,640.75
  5. Step 5: Solve for x
    x = 12,110,140,640.75/156,699.90
  6. Step 6: Final answer
    x = 77,282.38

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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.