Home / 133,400.72-184,070.12-79,707.28

Finding the Fourth Proportional to 133,400.72, 184,070.12 and 79,707.28

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Solution

The fourth proportional to 133,400.72, 184,070.12 and 79,707.28 is: 109,982.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,400.72 : 184,070.12 = 79,707.28 : x
  2. Step 2: Convert to fraction form
    133,400.72/184,070.12 = 79,707.28/x
  3. Step 3: Cross multiply
    133,400.72x = 184,070.12 × 79,707.28
  4. Step 4: Simplify right side
    133,400.72x = 14,671,728,594.47
  5. Step 5: Solve for x
    x = 14,671,728,594.47/133,400.72
  6. Step 6: Final answer
    x = 109,982.38

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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.