Home / 156,799.40-234,939.90-133,471.40

Finding the Fourth Proportional to 156,799.40, 234,939.90 and 133,471.40

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Solution

The fourth proportional to 156,799.40, 234,939.90 and 133,471.40 is: 199,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,799.40 : 234,939.90 = 133,471.40 : x
  2. Step 2: Convert to fraction form
    156,799.40/234,939.90 = 133,471.40/x
  3. Step 3: Cross multiply
    156,799.40x = 234,939.90 × 133,471.40
  4. Step 4: Simplify right side
    156,799.40x = 31,357,757,368.86
  5. Step 5: Solve for x
    x = 31,357,757,368.86/156,799.40
  6. Step 6: Final answer
    x = 199,986.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.