Home / 156,979.60-235,469.40-68,275.60

Finding the Fourth Proportional to 156,979.60, 235,469.40 and 68,275.60

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Solution

The fourth proportional to 156,979.60, 235,469.40 and 68,275.60 is: 102,413.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.60 : 235,469.40 = 68,275.60 : x
  2. Step 2: Convert to fraction form
    156,979.60/235,469.40 = 68,275.60/x
  3. Step 3: Cross multiply
    156,979.60x = 235,469.40 × 68,275.60
  4. Step 4: Simplify right side
    156,979.60x = 16,076,814,566.64
  5. Step 5: Solve for x
    x = 16,076,814,566.64/156,979.60
  6. Step 6: Final answer
    x = 102,413.40

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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.