Home / 142,727.32-214,102.04-42,879.68

Finding the Fourth Proportional to 142,727.32, 214,102.04 and 42,879.68

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Solution

The fourth proportional to 142,727.32, 214,102.04 and 42,879.68 is: 64,322.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,727.32 : 214,102.04 = 42,879.68 : x
  2. Step 2: Convert to fraction form
    142,727.32/214,102.04 = 42,879.68/x
  3. Step 3: Cross multiply
    142,727.32x = 214,102.04 × 42,879.68
  4. Step 4: Simplify right side
    142,727.32x = 9,180,626,962.55
  5. Step 5: Solve for x
    x = 9,180,626,962.55/142,727.32
  6. Step 6: Final answer
    x = 64,322.84

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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.