Home / 133,521.75-184,280.63-76,161.20

Finding the Fourth Proportional to 133,521.75, 184,280.63 and 76,161.20

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Solution

The fourth proportional to 133,521.75, 184,280.63 and 76,161.20 is: 105,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,521.75 : 184,280.63 = 76,161.20 : x
  2. Step 2: Convert to fraction form
    133,521.75/184,280.63 = 76,161.20/x
  3. Step 3: Cross multiply
    133,521.75x = 184,280.63 × 76,161.20
  4. Step 4: Simplify right side
    133,521.75x = 14,035,032,615.35
  5. Step 5: Solve for x
    x = 14,035,032,615.35/133,521.75
  6. Step 6: Final answer
    x = 105,114.21

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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.