Home / 187,570.86-281,356.98-45,415.90

Finding the Fourth Proportional to 187,570.86, 281,356.98 and 45,415.90

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Solution

The fourth proportional to 187,570.86, 281,356.98 and 45,415.90 is: 68,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,570.86 : 281,356.98 = 45,415.90 : x
  2. Step 2: Convert to fraction form
    187,570.86/281,356.98 = 45,415.90/x
  3. Step 3: Cross multiply
    187,570.86x = 281,356.98 × 45,415.90
  4. Step 4: Simplify right side
    187,570.86x = 12,778,080,241.25
  5. Step 5: Solve for x
    x = 12,778,080,241.25/187,570.86
  6. Step 6: Final answer
    x = 68,124.02

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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.