Home / 115,091.56-172,605.18-72,908.92

Finding the Fourth Proportional to 115,091.56, 172,605.18 and 72,908.92

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Solution

The fourth proportional to 115,091.56, 172,605.18 and 72,908.92 is: 109,343.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,091.56 : 172,605.18 = 72,908.92 : x
  2. Step 2: Convert to fraction form
    115,091.56/172,605.18 = 72,908.92/x
  3. Step 3: Cross multiply
    115,091.56x = 172,605.18 × 72,908.92
  4. Step 4: Simplify right side
    115,091.56x = 12,584,457,260.21
  5. Step 5: Solve for x
    x = 12,584,457,260.21/115,091.56
  6. Step 6: Final answer
    x = 109,343.01

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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.