Home / 131,630.86-181,650.60-74,282.32

Finding the Fourth Proportional to 131,630.86, 181,650.60 and 74,282.32

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Solution

The fourth proportional to 131,630.86, 181,650.60 and 74,282.32 is: 102,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,630.86 : 181,650.60 = 74,282.32 : x
  2. Step 2: Convert to fraction form
    131,630.86/181,650.60 = 74,282.32/x
  3. Step 3: Cross multiply
    131,630.86x = 181,650.60 × 74,282.32
  4. Step 4: Simplify right side
    131,630.86x = 13,493,427,997.39
  5. Step 5: Solve for x
    x = 13,493,427,997.39/131,630.86
  6. Step 6: Final answer
    x = 102,509.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.