Home / 142,467.20-196,542.96-85,846.40

Finding the Fourth Proportional to 142,467.20, 196,542.96 and 85,846.40

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Solution

The fourth proportional to 142,467.20, 196,542.96 and 85,846.40 is: 118,430.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,467.20 : 196,542.96 = 85,846.40 : x
  2. Step 2: Convert to fraction form
    142,467.20/196,542.96 = 85,846.40/x
  3. Step 3: Cross multiply
    142,467.20x = 196,542.96 × 85,846.40
  4. Step 4: Simplify right side
    142,467.20x = 16,872,505,561.34
  5. Step 5: Solve for x
    x = 16,872,505,561.34/142,467.20
  6. Step 6: Final answer
    x = 118,430.81

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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.