Home / 156,743.40-234,855.90-133,415.40

Finding the Fourth Proportional to 156,743.40, 234,855.90 and 133,415.40

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Solution

The fourth proportional to 156,743.40, 234,855.90 and 133,415.40 is: 199,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,743.40 : 234,855.90 = 133,415.40 : x
  2. Step 2: Convert to fraction form
    156,743.40/234,855.90 = 133,415.40/x
  3. Step 3: Cross multiply
    156,743.40x = 234,855.90 × 133,415.40
  4. Step 4: Simplify right side
    156,743.40x = 31,333,393,840.86
  5. Step 5: Solve for x
    x = 31,333,393,840.86/156,743.40
  6. Step 6: Final answer
    x = 199,902.48

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1.5x scale

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.