Home / 115,088.70-172,341.45-91,760.70

Finding the Fourth Proportional to 115,088.70, 172,341.45 and 91,760.70

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Solution

The fourth proportional to 115,088.70, 172,341.45 and 91,760.70 is: 137,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,088.70 : 172,341.45 = 91,760.70 : x
  2. Step 2: Convert to fraction form
    115,088.70/172,341.45 = 91,760.70/x
  3. Step 3: Cross multiply
    115,088.70x = 172,341.45 × 91,760.70
  4. Step 4: Simplify right side
    115,088.70x = 15,814,172,091.02
  5. Step 5: Solve for x
    x = 15,814,172,091.02/115,088.70
  6. Step 6: Final answer
    x = 137,408.56

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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.