Home / 172,748.36-259,260.78-89,666.12

Finding the Fourth Proportional to 172,748.36, 259,260.78 and 89,666.12

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Solution

The fourth proportional to 172,748.36, 259,260.78 and 89,666.12 is: 134,570.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,748.36 : 259,260.78 = 89,666.12 : x
  2. Step 2: Convert to fraction form
    172,748.36/259,260.78 = 89,666.12/x
  3. Step 3: Cross multiply
    172,748.36x = 259,260.78 × 89,666.12
  4. Step 4: Simplify right side
    172,748.36x = 23,246,908,210.77
  5. Step 5: Solve for x
    x = 23,246,908,210.77/172,748.36
  6. Step 6: Final answer
    x = 134,570.93

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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.