Home / 123,005.10-184,507.65-81,014.70

Finding the Fourth Proportional to 123,005.10, 184,507.65 and 81,014.70

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Solution

The fourth proportional to 123,005.10, 184,507.65 and 81,014.70 is: 121,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,005.10 : 184,507.65 = 81,014.70 : x
  2. Step 2: Convert to fraction form
    123,005.10/184,507.65 = 81,014.70/x
  3. Step 3: Cross multiply
    123,005.10x = 184,507.65 × 81,014.70
  4. Step 4: Simplify right side
    123,005.10x = 14,947,831,912.46
  5. Step 5: Solve for x
    x = 14,947,831,912.46/123,005.10
  6. Step 6: Final answer
    x = 121,522.05

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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.