Home / 142,650.46-196,857.60-78,988.24

Finding the Fourth Proportional to 142,650.46, 196,857.60 and 78,988.24

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Solution

The fourth proportional to 142,650.46, 196,857.60 and 78,988.24 is: 109,003.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,650.46 : 196,857.60 = 78,988.24 : x
  2. Step 2: Convert to fraction form
    142,650.46/196,857.60 = 78,988.24/x
  3. Step 3: Cross multiply
    142,650.46x = 196,857.60 × 78,988.24
  4. Step 4: Simplify right side
    142,650.46x = 15,549,435,354.62
  5. Step 5: Solve for x
    x = 15,549,435,354.62/142,650.46
  6. Step 6: Final answer
    x = 109,003.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.