Home / 133,416.83-184,113.73-72,989.21

Finding the Fourth Proportional to 133,416.83, 184,113.73 and 72,989.21

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Solution

The fourth proportional to 133,416.83, 184,113.73 and 72,989.21 is: 100,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,416.83 : 184,113.73 = 72,989.21 : x
  2. Step 2: Convert to fraction form
    133,416.83/184,113.73 = 72,989.21/x
  3. Step 3: Cross multiply
    133,416.83x = 184,113.73 × 72,989.21
  4. Step 4: Simplify right side
    133,416.83x = 13,438,315,702.85
  5. Step 5: Solve for x
    x = 13,438,315,702.85/133,416.83
  6. Step 6: Final answer
    x = 100,724.29

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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.