Home / 142,970.40-214,382.37-75,538.64

Finding the Fourth Proportional to 142,970.40, 214,382.37 and 75,538.64

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Solution

The fourth proportional to 142,970.40, 214,382.37 and 75,538.64 is: 113,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,970.40 : 214,382.37 = 75,538.64 : x
  2. Step 2: Convert to fraction form
    142,970.40/214,382.37 = 75,538.64/x
  3. Step 3: Cross multiply
    142,970.40x = 214,382.37 × 75,538.64
  4. Step 4: Simplify right side
    142,970.40x = 16,194,151,597.86
  5. Step 5: Solve for x
    x = 16,194,151,597.86/142,970.40
  6. Step 6: Final answer
    x = 113,269.26

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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.