Home / 136,056.51-203,745.33-85,985.55

Finding the Fourth Proportional to 136,056.51, 203,745.33 and 85,985.55

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Solution

The fourth proportional to 136,056.51, 203,745.33 and 85,985.55 is: 128,763.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,056.51 : 203,745.33 = 85,985.55 : x
  2. Step 2: Convert to fraction form
    136,056.51/203,745.33 = 85,985.55/x
  3. Step 3: Cross multiply
    136,056.51x = 203,745.33 × 85,985.55
  4. Step 4: Simplify right side
    136,056.51x = 17,519,154,259.98
  5. Step 5: Solve for x
    x = 17,519,154,259.98/136,056.51
  6. Step 6: Final answer
    x = 128,763.81

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1.5x scale

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.