Home / 142,823.62-197,089.50-79,160.86

Finding the Fourth Proportional to 142,823.62, 197,089.50 and 79,160.86

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Solution

The fourth proportional to 142,823.62, 197,089.50 and 79,160.86 is: 109,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,823.62 : 197,089.50 = 79,160.86 : x
  2. Step 2: Convert to fraction form
    142,823.62/197,089.50 = 79,160.86/x
  3. Step 3: Cross multiply
    142,823.62x = 197,089.50 × 79,160.86
  4. Step 4: Simplify right side
    142,823.62x = 15,601,774,316.97
  5. Step 5: Solve for x
    x = 15,601,774,316.97/142,823.62
  6. Step 6: Final answer
    x = 109,238.05

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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.