Home / 149,612.86-206,492.45-89,187.47

Finding the Fourth Proportional to 149,612.86, 206,492.45 and 89,187.47

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Solution

The fourth proportional to 149,612.86, 206,492.45 and 89,187.47 is: 123,094.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,612.86 : 206,492.45 = 89,187.47 : x
  2. Step 2: Convert to fraction form
    149,612.86/206,492.45 = 89,187.47/x
  3. Step 3: Cross multiply
    149,612.86x = 206,492.45 × 89,187.47
  4. Step 4: Simplify right side
    149,612.86x = 18,416,539,189.60
  5. Step 5: Solve for x
    x = 18,416,539,189.60/149,612.86
  6. Step 6: Final answer
    x = 123,094.63

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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.