Home / 115,030.83-172,354.89-40,109.67

Finding the Fourth Proportional to 115,030.83, 172,354.89 and 40,109.67

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Solution

The fourth proportional to 115,030.83, 172,354.89 and 40,109.67 is: 60,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,030.83 : 172,354.89 = 40,109.67 : x
  2. Step 2: Convert to fraction form
    115,030.83/172,354.89 = 40,109.67/x
  3. Step 3: Cross multiply
    115,030.83x = 172,354.89 × 40,109.67
  4. Step 4: Simplify right side
    115,030.83x = 6,913,097,760.79
  5. Step 5: Solve for x
    x = 6,913,097,760.79/115,030.83
  6. Step 6: Final answer
    x = 60,097.78

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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.