Home / 156,743.90-234,856.65-133,415.90

Finding the Fourth Proportional to 156,743.90, 234,856.65 and 133,415.90

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Solution

The fourth proportional to 156,743.90, 234,856.65 and 133,415.90 is: 199,903.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,743.90 : 234,856.65 = 133,415.90 : x
  2. Step 2: Convert to fraction form
    156,743.90/234,856.65 = 133,415.90/x
  3. Step 3: Cross multiply
    156,743.90x = 234,856.65 × 133,415.90
  4. Step 4: Simplify right side
    156,743.90x = 31,333,611,330.74
  5. Step 5: Solve for x
    x = 31,333,611,330.74/156,743.90
  6. Step 6: Final answer
    x = 199,903.23

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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.