Home / 109,725.60-164,588.40-43,143.60

Finding the Fourth Proportional to 109,725.60, 164,588.40 and 43,143.60

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Solution

The fourth proportional to 109,725.60, 164,588.40 and 43,143.60 is: 64,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,725.60 : 164,588.40 = 43,143.60 : x
  2. Step 2: Convert to fraction form
    109,725.60/164,588.40 = 43,143.60/x
  3. Step 3: Cross multiply
    109,725.60x = 164,588.40 × 43,143.60
  4. Step 4: Simplify right side
    109,725.60x = 7,100,936,094.24
  5. Step 5: Solve for x
    x = 7,100,936,094.24/109,725.60
  6. Step 6: Final answer
    x = 64,715.40

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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.