Home / 184,427.80-275,985.60-128,003.20

Finding the Fourth Proportional to 184,427.80, 275,985.60 and 128,003.20

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Solution

The fourth proportional to 184,427.80, 275,985.60 and 128,003.20 is: 191,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,427.80 : 275,985.60 = 128,003.20 : x
  2. Step 2: Convert to fraction form
    184,427.80/275,985.60 = 128,003.20/x
  3. Step 3: Cross multiply
    184,427.80x = 275,985.60 × 128,003.20
  4. Step 4: Simplify right side
    184,427.80x = 35,327,039,953.92
  5. Step 5: Solve for x
    x = 35,327,039,953.92/184,427.80
  6. Step 6: Final answer
    x = 191,549.43

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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.