Home / 115,005.60-172,513.80-36,122.40

Finding the Fourth Proportional to 115,005.60, 172,513.80 and 36,122.40

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Solution

The fourth proportional to 115,005.60, 172,513.80 and 36,122.40 is: 54,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,005.60 : 172,513.80 = 36,122.40 : x
  2. Step 2: Convert to fraction form
    115,005.60/172,513.80 = 36,122.40/x
  3. Step 3: Cross multiply
    115,005.60x = 172,513.80 × 36,122.40
  4. Step 4: Simplify right side
    115,005.60x = 6,231,612,489.12
  5. Step 5: Solve for x
    x = 6,231,612,489.12/115,005.60
  6. Step 6: Final answer
    x = 54,185.30

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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.