Home / 142,743.48-214,125.84-42,895.68

Finding the Fourth Proportional to 142,743.48, 214,125.84 and 42,895.68

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Solution

The fourth proportional to 142,743.48, 214,125.84 and 42,895.68 is: 64,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,743.48 : 214,125.84 = 42,895.68 : x
  2. Step 2: Convert to fraction form
    142,743.48/214,125.84 = 42,895.68/x
  3. Step 3: Cross multiply
    142,743.48x = 214,125.84 × 42,895.68
  4. Step 4: Simplify right side
    142,743.48x = 9,185,073,512.37
  5. Step 5: Solve for x
    x = 9,185,073,512.37/142,743.48
  6. Step 6: Final answer
    x = 64,346.71

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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.