Home / 139,837.19-209,568.26-76,562.01

Finding the Fourth Proportional to 139,837.19, 209,568.26 and 76,562.01

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Solution

The fourth proportional to 139,837.19, 209,568.26 and 76,562.01 is: 114,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,837.19 : 209,568.26 = 76,562.01 : x
  2. Step 2: Convert to fraction form
    139,837.19/209,568.26 = 76,562.01/x
  3. Step 3: Cross multiply
    139,837.19x = 209,568.26 × 76,562.01
  4. Step 4: Simplify right side
    139,837.19x = 16,044,967,409.21
  5. Step 5: Solve for x
    x = 16,044,967,409.21/139,837.19
  6. Step 6: Final answer
    x = 114,740.35

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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.