Home / 142,999.94-197,337.30-79,336.37

Finding the Fourth Proportional to 142,999.94, 197,337.30 and 79,336.37

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Solution

The fourth proportional to 142,999.94, 197,337.30 and 79,336.37 is: 109,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,999.94 : 197,337.30 = 79,336.37 : x
  2. Step 2: Convert to fraction form
    142,999.94/197,337.30 = 79,336.37/x
  3. Step 3: Cross multiply
    142,999.94x = 197,337.30 × 79,336.37
  4. Step 4: Simplify right side
    142,999.94x = 15,656,025,243.43
  5. Step 5: Solve for x
    x = 15,656,025,243.43/142,999.94
  6. Step 6: Final answer
    x = 109,482.74

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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.