Home / 142,342.87-196,305.91-118,105.45

Finding the Fourth Proportional to 142,342.87, 196,305.91 and 118,105.45

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Solution

The fourth proportional to 142,342.87, 196,305.91 and 118,105.45 is: 162,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,342.87 : 196,305.91 = 118,105.45 : x
  2. Step 2: Convert to fraction form
    142,342.87/196,305.91 = 118,105.45/x
  3. Step 3: Cross multiply
    142,342.87x = 196,305.91 × 118,105.45
  4. Step 4: Simplify right side
    142,342.87x = 23,184,797,838.21
  5. Step 5: Solve for x
    x = 23,184,797,838.21/142,342.87
  6. Step 6: Final answer
    x = 162,879.94

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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.