Home / 156,979.15-235,468.73-51,784.45

Finding the Fourth Proportional to 156,979.15, 235,468.73 and 51,784.45

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Solution

The fourth proportional to 156,979.15, 235,468.73 and 51,784.45 is: 77,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.15 : 235,468.73 = 51,784.45 : x
  2. Step 2: Convert to fraction form
    156,979.15/235,468.73 = 51,784.45/x
  3. Step 3: Cross multiply
    156,979.15x = 235,468.73 × 51,784.45
  4. Step 4: Simplify right side
    156,979.15x = 12,193,618,675.25
  5. Step 5: Solve for x
    x = 12,193,618,675.25/156,979.15
  6. Step 6: Final answer
    x = 77,676.68

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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.