Home / 145,684.56-218,453.62-84,914.41

Finding the Fourth Proportional to 145,684.56, 218,453.62 and 84,914.41

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Solution

The fourth proportional to 145,684.56, 218,453.62 and 84,914.41 is: 127,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,684.56 : 218,453.62 = 84,914.41 : x
  2. Step 2: Convert to fraction form
    145,684.56/218,453.62 = 84,914.41/x
  3. Step 3: Cross multiply
    145,684.56x = 218,453.62 × 84,914.41
  4. Step 4: Simplify right side
    145,684.56x = 18,549,860,254.66
  5. Step 5: Solve for x
    x = 18,549,860,254.66/145,684.56
  6. Step 6: Final answer
    x = 127,328.94

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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.