Home / 142,835.92-197,110.38-79,173.16

Finding the Fourth Proportional to 142,835.92, 197,110.38 and 79,173.16

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Solution

The fourth proportional to 142,835.92, 197,110.38 and 79,173.16 is: 109,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,835.92 : 197,110.38 = 79,173.16 : x
  2. Step 2: Convert to fraction form
    142,835.92/197,110.38 = 79,173.16/x
  3. Step 3: Cross multiply
    142,835.92x = 197,110.38 × 79,173.16
  4. Step 4: Simplify right side
    142,835.92x = 15,605,851,653.40
  5. Step 5: Solve for x
    x = 15,605,851,653.40/142,835.92
  6. Step 6: Final answer
    x = 109,257.19

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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.